湖南框剪结构高层商住楼机械冲击桩基础工程施工方案(冲孔灌注桩)

'WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you鸿宇城商住楼工程机械冲击桩工程施工方案编制单位：　湖南省永安建筑股份有限公司鸿宇城项目部编制日期：二零一三年四月二十八日needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you施工组织设计（方案）审批记录工程名称：鸿宇城A区商住楼结构类型：框架剪力墙结构层次：框剪3～31+2F建筑面积：.38㎡我项目部根据施工合同和施工图设计的要求已完成了机械冲孔灌注桩施工组织设计（方案）的编制，并经公司技术部门审查批准，请予审查。方案附后：项目经理：项目部（章）：年月日公司技术负责人或总工审批意见：签章：年月日专业监理工程师审查意见：专业监理工程师：年月日监理（建设）单位审核意见：监理单位项目总监理工程师监理（建设）项目部:(章)(建设单位项目技术负责人)：年月日needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you第一节工程概况鸿宇城商住楼工程位于浏阳市老城区新文路与浏阳河中路交汇处，集商业、住宅、酒店于一体，成为浏阳市的核心商业圈。由浏阳市鸿宇房地产开发有限责任公司投资新建，湖南省勘测设计院勘察，中国有色金属长沙勘察设计研究院承担设计，浏阳市建设监理有限公司监理，湖南省永安建筑股份有限公司承建。由A、B二个地块组成，其中A地块建筑物由一个整体地下室和A1、A2、A3、A4、A5、A6、A7、A8八栋主楼构成，分别为30层、31层、31层、31层、27层、29层、3层、3层框剪结构，地下室负一层高为4.1米；负二层高为3.7米。A1、A2、A3、A4栋商住楼1~7层层高为5米；8层层高为3.9米，9~31层层高为2.9米。A5栋商住楼1~7层层高为5米；8层层高为3.9米，9~27层层高为3.15米。A6栋写字楼1~5层层高为5米；6层层高为3.9米，7~29层层高为3.3米。A7、A8栋一层层高为5米；二层层高为4.5米，三层层高为3.8米，四层层高为3.6米。A1~A5栋地上一至七层为商业综合体，A6栋地上一至六层为商业综合体，A7和A8栋四层全部为商场商铺。计容面建筑积为平方米，其中商业建筑面积约.88平方米；住宅（480套）建筑面积63703.88平方米；公寓式酒店面积37344.17平方米；物业及配套用房面积1629.07平方米。不计容建筑面积为45161.58平方米，其中安全通道面积6644.13平方米；屋顶机房面积1060.37平方米；架空层面积为1086.22平方米；地下室车库面积为36370.86平方米；总建筑面积为.58平方米。主体建筑（屋面）高度99.8米；A5栋地上建筑面积约20673.87平方米，主体建筑（屋面）高度93.95米。根据地质勘察报告本工程基础采用液压锤击预应力预制管桩、机械冲孔灌注桩和机械旋挖取土成孔灌注桩桩基础相结合，机械冲孔桩施工方案如下：第二节编制依据1、鸿宇城商住楼工程设计图纸。2、中国建筑工业出版社1999年1月出版的《建筑施工手册》。3、湖南省勘测设计院编制的浏阳市鸿宇城《岩土工程详细勘察报告》。4、建筑桩基技术规范（JGJ94-94）第三节施工部署needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you一、质量目标认真贯彻公司的质量方针，严格执行ISO9001:2000质量标准，确保工程质量达到合格要求。二、工期目标本桩基工程施工工期为30日历天。三、项目管理组织架构本工程的施工组织实行“项目法”施工管理模式，派专业岩土工程师作为施工负责人，对工程的质量、技术、安全、进度和成本实行高效益、高标准的组织、协调和管理。项目部组织结构图详见总体施工组织设计中的项目管理组织架构。四、施工顺序拟将施工力量分为四组，总体施工顺序为由西向东、由北至南同时施工。五、施工方法及机械的选择根据本场地地质特点A1、A2栋持力层为中风化泥灰岩采用钻（冲）孔灌注桩，A3、A4、A5、A6栋持力层为中风化泥灰岩采用钻（冲）孔灌注桩或应力管桩，A7、A8栋持力层为强风化泥灰岩或中风化泥灰岩采用预应力管桩。六、施工力量安排本工程工期紧，桩基数量大，质量要求高，因此除必须配备施工经验丰富、组织能力强的项目班子，施工力量的投入是根本保证。根据本工程的规模和施工进度的安排，我们拟在施工期间投入64人，其中桩机工17人，灌注工17人，其他工人10人。详见“主要劳动力用量计划表”。拟投入冲孔桩机4台，砼输送泵1台，电焊机5台，其他设备若干。详见“主要施工机具及检测试验设备计划表”。第四节施工方法及技术措施needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you一、施工准备1、熟悉和掌握有关的图纸设计和施工规范要求及图纸会审记录、设计变更通知单、岩土工程勘察报告、超前钻探等技术资料。2、根据桩位设计图建筑坐标、高程控制点标高进行轴位放线，定出桩位并用16*800钢筋作桩位标志固定好。随后检查，复核各桩位轴线设计参数，并经甲方、监理等有关各单位验收合格。3、材料、人员、机械设备、各种工具应提前进场准备好，临水、临电设施架设或铺设完成。4、做好施工现场的排水系统，浆池、浆沟开挖工作。施工污水须经沉淀池处理后，才可排入市政管道。同时，做好施工现场的安全、文明施工工作。二、施工工艺流程冲孔灌注桩工艺流程图三、施工方法及技术措施needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you针对本工程的地质情况，决定采用冲击成孔，冲击成孔对软弱、易塌土层可投放填充物冲击造壁，在坚硬的岩层（微风化灰岩）具有成孔速度快等优点。冲孔灌注桩采用泥浆护壁，冲击钻进成孔、正循环清孔，现场制作、安放钢筋笼，水下砼灌注成桩。1、测量定位用经纬仪测放桩位，桩位中心插一钢筋，四周各打一根控制桩来控制桩位中心，用砂浆固定控制桩，并经复核合格后，进入下道工序。2、埋设护筒护筒采用4～8mm厚的钢板加工制成，高度1.5m，内径为D（桩径）+20cm，护筒上部开设1～2个溢浆孔；校核桩位中心后，在护筒四周用粘土分层回填夯实，护筒埋设深度一般为1.2～1.5m。3、冲击成孔护筒埋设好后，桩机就位，使冲击锤中心对准护筒中心，要求偏差不大于±20mm。开始应低锤密击，锤高0.4～0.6，并及时加片石，砂砾和粘土泥浆护壁，使孔壁挤压密实，直至孔深达护筒底以下3～4m后，才可加快速度，将锤提高至2～3.5m以上转入正常冲击。冲孔时应及时将孔内残渣排出，每冲击1～2m，应排渣一次，并定时补浆，直至设计深度。每冲击1～2m检查一次成孔的垂直度，如发生斜孔、塌孔或护筒周围冒浆时，应停机。待采取相应措施后再进行施工。粘土中钻进时，采用原土造浆。在较厚的砂层中钻进时，采用膨润土制备泥浆或在孔中投入粘土造浆，为使泥浆有较好的技术性能，适当掺加碳酸钠等分散剂，其掺量为加水量0.5%左右。泥浆性能指标选择成孔方法地层情况泥浆性能指标相对密度粘度（S）含砂率（%）胶体率（%）失水率（m1/30min）泥皮厚（mm/30min）静切力（Pa）酸碱度冲击粉质粘土1.05～1.2016～228～4≥96≤25≤21.0～2.58～10needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you砂层1.2～1.522～28≤4≥95≤20≤33～58～11冲击成孔施工要点项目施工要点备注在护筒脚下2m以内小冲程1m左右，泥浆比重1.2～1.5，软弱层投入粘土块夹小片石。土层不好时宜提高泥浆比重或加粘土块。粘土或粉质粘土层中、小冲程1～2m，泵入清水或稀泥浆，经常清除钻头上的泥块。防粘钻，可投片石。粉砂或中粗砂中冲程2～3m，泥浆比重1.2～1.5，投入粘土块，勤清碴。基岩高冲程3～4m，泥浆比重1.3左右，勤清碴。如遇基岩面倾陡，回填块石至岩面以上30～50cm，先低锤密击待形成平面后正常冲击；如遇溶洞，采用回填粘土夹片石，低锤密击冲击造壁或压入钢护筒护壁。软弱土层或塌孔回填重钻小冲程反复冲击，加粘土块夹小片石，泥浆比重1.3～1.5。冲击至岩面时，加大冲程，勤清渣。每钻进100～200mm要取一次岩样，并妥善保存，以便终孔时验证。冲击过程中，为防止跑架，应随时校核钢丝绳是否对中桩位中心，发生偏差应立即纠正。成孔后，应用测绳下挂0.5kg重铁砣测量检查孔深，核对无误后，经监理工程师终孔验收后，进行下一道工序。4、钢筋笼制作安装钢筋骨架现场制作，在一次清孔完毕后，起钻、吊车吊放钢筋骨架。钢筋笼外侧设置控制保护层厚度的垫块（砼保护层厚度为70mm），其间距竖向为2m，横向圆周不得小于4处，顶端应设置吊环，钢筋骨架在井口分段焊接，采用单面搭接焊时，焊接长度10dneedtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you，受力钢筋接头应相互错开，在任一焊接接头中心至长度为钢筋直径的35倍且不大于500mm的区段范围内有接头的受力钢筋截面面积占受力钢筋总截面面积的百分率不大于50%，同一钢筋上应尽量少设接头，接头位置应设置在受力较小处，钢筋规格、等级、间距等安放必须准确。钢筋笼的制作应符合图纸设计和建筑地基基础工程施工质量验收规范《GB50202-2002》要求。钢筋笼制作允许偏差表（mm）项次项目允许偏差1主筋间距±102箍筋间距±203钢筋笼直径±104钢筋笼倾斜度±0.5%5钢筋笼安装深度±1006长度±100钢筋笼在运输和吊装时，应防止变形，安放应对准孔位，不得强行插入和碰撞孔壁，就位后应立即固定。钢筋笼安装可用小型吊运机具或起重机吊装就位。对直径和长度大的钢筋笼，可分节制作和安装，且在每节主筋内侧每隔5m设一道井字Ф30加强支撑，与主筋焊接牢固组成骨架。钢筋笼安装完毕时，应会同建设单位、监理单位对该项进行隐蔽工程验收，合格后应及时灌注水下砼。5、安放导管导管采用壁厚5mm的无缝钢管制作，直径Ф250，导管必须具有良好的密封性能，使用前应进行水密承压和接头抗拉试验，进行水密试验的水压不应小于孔内水1.3倍的压力，也不应小于导管壁和焊缝可能承受灌注时最大压力的1.3倍。导管吊放时应居中且垂直，下口距孔底0.3～0.5米，最下一节导管长度应大于4米。导管接头用法兰或双螺纹方扣快速接头。6、清孔needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you本工程采用正循环工艺清孔，一次清孔采用橡胶管，一次清孔降低泥浆浓度，防止二次清孔因沉淤过厚而难以清理，以及保证钢筋笼下放顺利；二次清孔在导管下放后，利用导管进行，二次清孔泥浆比重控制在1.15～1.2，粘度≤28s，含砂率≤8%，孔底沉渣厚度≤50mm。清孔过程中，必须及时补给足够的泥浆，并保持孔内浆液面的稳定和高度。清孔完毕后，必须在30分钟内进行灌注砼。7、水下砼灌注施工水下砼灌注是成桩过程的关键工艺，施工人员应从思想上高度重视，在做好准备工作和技术措施后，才能开始灌注。本工程采用商品砼，混凝土强度等级C30，用砼搅拌运输车运至现场，导管水下砼灌注。砼必须具备良好的和易性，坍落度控制在18～22cm。砼充盈系数大于1.0，水泥用量不少于360kg/m3，含砂率为40%～45%，并选用中粗砂，粗骨料的最大粒径应为<40mm，采用二级配，砼初凝时间一般宜低于3～4小时。采用同标号砼隔水塞隔水。料斗砼灌注量应计算准确，保证导管埋入砼中不小于0.8～1.2m。灌注前，在料斗内灌入0.2m左右的1:1.5水泥砂浆。灌注时，保证导管埋入砼中1.5～6m，每根桩的灌注时间符合下面规定：灌注量10～20m3不得超过2h，灌注量20～30m3不得超过4h，砼浇筑要一气呵成，不得中断，并控制在4～6h内浇筑完，以保证砼的均匀性，间歇时间一般应控制在15min内，任何情况下不得超过30min。最后一次灌注砼量，应高出桩顶设计标高0.5～0.6m，砼浇筑完毕，马上清除0.3～0.4m，余下的待施工承台时再凿除，以利新老砼结合和保证砼质量。8、泥浆渣土处理措施成孔过程中产生的泥浆及时排放至储浆池，再抽进全封闭泥浆车运至弃置点，产生的淤泥渣土及时成堆，然后由渣土车运至弃置点。9、成品保护（1）已完成的桩，不允许车辆或钻机从邻近经过，以免造成断桩或桩位偏移情况。（2）桩芯砼浇筑完成，在砼终凝后，应及时进行浸水养护，养护时间不少于14昼夜。10、技术资料needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you由项目部资料员负责整理，归档各种技术资料，按照合同要求编制好，以备查。每根桩必须进行岩渣留样（验渣）且应留置砼试件。11、桩基检测桩基施工完毕后，按设计和规范要求进行桩基检测，具体方法由设计、监理、甲方等根据施工情况和规范要求研究决定，并采用下列不少于二种方法检测：超声波透射法检测，判断单桩承载力是否满足设计要求，其试验的数量不得少于总桩数的5%，且不少于5根。无损动测试验，判断桩身的完整情况，是否缩颈、夹泥或断桩。每一承台内桩的检测数量不少于1根，检测数量不少于桩总数的30%。抽芯试验，判断桩身砼质量、桩底沉渣及桩尖持力层是否满足设计要求，根据低应变试桩的结果进行抽芯检查，检查数量不少于桩总数的5%。12、关键工序质量控制（1）施工中所用的计量器具如经纬仪、水准仪必须经过计量部门检验并登记注册，没有计量合格证不得使用。有专人检查各种桩位的定点，定期派专人校核基准点，各种测量检查均需认真填写成果记录及附图，测量结果应准确可靠。（2）桩基正式施工前，应进行试冲，试冲数量不少于10根。（3）成孔开始前应充分做好准备工作，桩机定位应准确水平、稳固，桩机冲击钻与护筒中心的允许偏差应不大于±20mm，成孔施工应一次不间断地完成，不得无故停机，施工过程应做好施工原始记录。（4）确保桩的入岩深度，当冲击至微风化岩岩面。经过取样鉴定为微风化岩面（报监理、设计或勘探单位认可），再钻至设计入岩深度，必须满足设计要求，得到监理工程师或钻探单位验收合格后方可终孔。（5）钢筋笼制作严格按图纸设计和规范要求加工，下放前，须加砼保护块，确保钢筋保护层。焊接用的电焊条必须有合格证和符合图纸设计，单面搭接焊10d，缝厚S≥0.3d，缝宽b≥0.7dneedtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you。焊缝应连续、饱满、无夹渣、气泡，应符合规范要求，同时做隐蔽工程验收。（6）钢筋笼在起吊、运输和安装中应采取措施，防止变形。安装入孔时，应保持垂直状态，对准孔位徐徐轻放，避免碰撞孔壁，下笼中若遇阻碍不得强行下放，应查明原因，酌情处理后再继续下笼。（7）灌注混凝土前，须进行二次清孔，清孔后的泥浆浓度控制在1.10以下，同时利用测绳测量沉渣厚度，确保沉渣厚度小于5cm。（8）混凝土灌注是确保成桩质量的关键工序，导管应连接平直可靠，密封性好，隔水塞砼强度不低于桩身砼强度，外形规则光滑并配有橡胶片。灌斗容量应能满足混凝土的初灌量的要求，混凝土灌注要连续紧凑地进行，严禁将导管提出砼面，导管埋入砼面的深度2～6m为宜，混凝土灌注中应经常测定砼面上升情况，在灌注将近结束时，应核对砼的灌入数量，以确定所测的混凝土的灌注高度是否正确，当砼灌注达到超灌标高时，经监理工程师确认符合要求方可停止灌注，同时做好水下灌注砼的隐蔽工程验收。（9）为保证工程质量，关键工序及主要工序应提请监理现场验收。a、桩位测放；b、嵌岩深度确定；c、护筒埋设、桩位对中；d、测量孔深；e、清孔后沉渣测定；f、钢筋笼制安；g、水下砼灌注。第五节施工进度计划按4台冲孔机同时开工计，每天约完成4根桩，需用工期共45天。详见附表一第六节劳动力需要量计划、主要施工机具及检测试验设备的进场计划公司本着合理利用资源，节约使用劳动力原则，安排计划本工程各时期的劳动力、机械用量的需要。主要劳动、施工机具用量及进场时间见下各表。needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you一、主要劳动力用量计划表项目工种人数桩基工程机长17砼灌注工17电焊工5测量工5机修工5水电工5其它人员10合计64二、主要施工机具及检测试验设备计划表序号机具名称型号单位数量单位功率进场时间1砼输送泵HBT60C台1110KW开工后3天2插入式振捣器JQ221-2支151.1KW开工后3天3电焊机XD1-185台512KVA开工后2天4潜水泵QY-25台502.2KW开工时5水准仪S3-d台2开工时6经纬仪J2台2开工时7检测工具多功能套2开工时850m钢尺GB10633-89把3开工时9砼试件模15×15×15cm组3开工时10冲孔桩机CK1500台7开工时11泥浆车辆2开工时12渣土车辆2开工时needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you第七节质量保证措施1、开工前，应做好施工图预审会审工作。编制完善的施工方案。2、现场施工技术人员必须认真学习设计图纸和施工方案内容，对工人进行技术和安全交底，严格按设计要求和规范施工。3、施工过程中，落实各级人员岗位责任制，加强技术管理，认真贯彻各项技术管理制度，开展全面质量管理活动。4、按图纸要求专人放线，施工前组织施工技术管理人员及机械施工人员，对施工图纸及有关规范的要求作交底，施工过程的监控作出明确的要求。5、认真进行原材料检验，材料进场要有产品质量出厂合格证。按规定抽样送检，合格后方能使用。6、现场应严格执行配合比配料，砼试块要按规定进行养护并按期送试验室试验。7、施工过程由主管施工员对主要轴线、位置、标高、尺寸等进行复核校对，经复核校对无误后，方可进行下一工序的施工。8、施工过程中，及时做好隐蔽工程验收工作，并记录和整理有关资料。9、施工过程中，切实执行工人班组自检、互检、交接检制度。施工员、质安员要进行经常性检查，及时发现消除隐患，并做好记录。10、项目经理部每星期检查一次，并开例会总结施工质量情况。11、公司有关部门经常进行质量检查，落实各项工作。12、钢筋应严格按施工图纸和规范抽料并经复核，严格按抽料单制作。安装应保证保护层厚度达到设计要求，接头位置及在同一截面的接头根数应符合规范要求。13、桩身浇注时严格控制砼坍落度，并按水下砼的要求进行施工。14、严格执行公司质量管理体系文件的要求。第八节安全保证措施及管理一、安全保证措施1、工地建立以项目经理为首的安全生产责任小组和安全检查轮值小组，做好安全知识学习工作。项目部设专职安全员，施工班组设兼职安全员。2、进入施工现场必须戴安全帽，严禁赤脚和穿拖鞋、高跟鞋进入。needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you3、严禁酒后操作。特殊工种要有上岗证。4、全部供电线路必须有系统地架设，从配电箱接出的照明、电动小工具线路应采用电缆离地架设。5、电器设备必须按规定接地接零、制箱要设在离地面1.5M高处，装设要牢固可靠,制箱应加锁。6、要做到一机一闸制，防漏电开关，不能一制多机，每闸制旁应标注该闸制的地段或机械设备名称、使用功率。均配铁制开关箱，并按“三相五线制”架设线路。7、每日检查一次全部机械设备的接地电阻，并详细记录，存档备查。施工现场必须有各种防护设施和警示牌、安全标志均不得任意拆除和随意移动。所有机具应有防雨措施和接地接零措施，在潮湿环境下操作的手动工具，电源线必须采用电缆。8、在现场堆放的材料和设备要整齐有序,不使用的设备和机具以及废料要及时清理，保证通道畅通。9、加强消防保卫工作，所有进出人员必须佩带胸卡，工地入口应坚持每天24小时的值班制度，谢绝外来人员进场，以确保安全。10、严格执行“十项安全生产措施”，必须对每位工人做好三级安全技术交底工作。11、开工前各岗位操作人员必须对设备、特别是对机械等进行安全检查，确认机械性能良好，方可开工。12、如遇六级以上大风、暴雨、浓雾、雷暴要停止运作。13、钻机、卷扬机严格按规程操作，严禁盲目、野蛮作业，桩机的组装、拆卸应严格按使用说明书规定执行。14、桩机、卷杨机上使用的钢丝绳，应连接牢固，定时对钢丝绳及共连接部位进行检查和更换。15、桩机周围5米以内无高压线路，桩机的传动皮带上必须设有防护罩。16、泥浆池周边必须设置高于地面1.2米的栏杆防护。17、成桩后的桩孔必须回填或加盖板防护，以防人员掉入。二、消防安全措施needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you1、建立现场防火领导机构，施工现场配备消防器材和设施，铺设消防用水管道。2、施工现场划分禁火区、动火区。严格控制电焊、气焊地盘位置，必要时应采取有效的防火隔离措施。动火须申请有关部门批准后方可用火。3、建立消防应急措施和值班巡逻制度。遵守消防安全管理制度。第九节文明施工措施建立健全的现场文明施工管理组织，由项目经理总负责，施工班组设兼职管理员。施工现场内应对施工设备、材料堆放、场地道路进行统一合理布局。做好泥浆的现场管理工作，浆液不得外溢，以免污染工地。污水须经沉淀滤清后才可排向市政管道。工地大门（出入口）设置洗车及三级泥浆沉淀池，保证车辆外出不污染路面。各项文明施工工作应严格按照长沙市“建设工程文明施工若干规定”执行。第十节工期保证措施本工程分阶段开挖施工，我们将抓住如下几项控制措施：一、根据总体控制计划、各阶段施工进度计划，实施过程中不断完善和分解，编制详细的周施工计划。实行信息监控，及时调整部署，采取相应措施，确保每一阶段的计划如期实施。二、定期召开每周生产例会，加强与各单位协调工作，及时解决施工中存在的问题。三、严格控制各工序的施工质量，减少因质量问题而引起的返工。四、加强劳动力管理，及时组织劳动力进场，合理安排各班组的工作面。五、通过合理的施工组织，安排流水式施工。六、及时编制材料的需用量计划及采购进场计划。七、配备足够的机械设备。needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you八、各工种由专业的熟练工人进行施工，分区段全面铺开施工。九、质量检查员要随施工班组认真检查，不出现返工现象，确保施工顺利。十、实行流水施工方法，实现均衡的流水施工，加快施工速度。十一、工前做好技术交底工作。第十一节环境保护管理一、环境保护措施为了保护和改善生活环境与生态环境，防止由于建筑施工造成的作业污染和扰民，保障建筑工地附近居民和施工人员的身体健康，促进社会文明的进步，必须做好建筑施工现场的环境保护工作。二、管理目标1、防大气污染达标：施工现场场尘、生活用炉、灶烟尘的排放符合要求（扬尘达到国家二级排放规定，烟尘排放浓度<400mg/Nm3。）2、生活及生产污水达标：污水排放符合城市水污染排放标准3、施工垃圾分类处理，设置分类垃圾箱，尽量回收利用。4、节约水、电、纸张等资源消耗，节约资源，保护环境。三、管理措施1、施工垃圾和渣土要及时清运，清运前，要适量洒水减少扬尘。2、泥和其它易飞扬的细颗粒散体材料应尽量安排库内存放。露天存放时要严密苫盖，运输和卸运时防止遗洒飞扬，以减少扬尘。3、施工现场要制定洒水降尘制度，配备专用洒水设备及指定专人负责，在易产生扬尘的季节，施工场地采取洒水降尘。4、现场排放的废水（冲洗泵车、汽车的污水）要排入沉淀池内，经二次沉淀达到排放标准后，方可排入市政污水管线或回收用于洒水降尘。未经处理的泥浆水，严禁直接排入排水设施。5、食堂污水的排放控制。施工现场临时食堂，要设置简易有效的隔油池，产生的污水经下水管道排放要经过隔油池。平时加强管理，needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17- WiththeShaanxiExpresswaynetworkingtoll,tollextensionbusinessisnowweighingchargesforstoragechargesdatabasesecurityandbackupofbusinessdatahasbecomemoreprominent.Aftertwoyearsofoperation,moreandmoreawarenessoftheoperatingunitstodatabasestabilityissuesisaproblemnottobeignored.Simpleexamplessuchas:failureoftheserversanddatabases,generalmaintenanceandmanagementstaff,inmanycases,cannotbeindependentandquickrecovery,hadanimpactonproduction.Soweneedaproperdatabackupsolutions.Databaseisthecoreofthewholesystem,databasesecurityshouldpaymoreattention.Therefore,theformulationofappropriatedatabasebackupstrategy,istomaintaindatabasesecuritynormsaswellastheguidelines,tobackupthedataitneedsfromthetechnical,aswellasadministrativelyregulated.Indatasecurity,datasecuritystrategyistomaintaintheintegrity,confidentialityandavailabilityofinformation.Therefore,databasesecuritypolicywillfocusonthesethreepoints,includingphysicalsecurity,accesscontrol,databackupandemergencyresponse.Here,inthetollcollectionsystemintheprovinceusestheSQLServerdatabaseasanexampletoillustratetheideaofdevelopingitssecuritypolicy.1researchbackgroundofconstructionofnetworkedExpresswaytollcollectionsystemreducedthenumberofdriversvehiclesintheroadnetworkandimproveroadcapacity,reducingenvironmentalpollutionduetoparking,enhancetheeconomicbenefitsofHighwayandsocialimage.ShaanxiProvincialExpresswaynetworkingtollbeganinMay2004,asofnowtherearemorethan200dataserver,asmoresectionsofgrid-connectedcharges,chargesdataasthecoreofthewholesystem,itisnecessarytoestablishasetofdatasecurityandreliablesolution.2purposethistimethroughtheanalysisofnetworkdatainserverhealth,ShaanxiProvincialExpresswaynetworkingtollsystembasedondata,statisticalmethodsofdatastorage,dataresearch,originalchargeaspossiblesecurity,integrityandprivacyofdata.Fortheopeningsectionafterincorporationfeesprovideareliablesetofdatasecuritypolicies.3databasesecuritysituationintheprovinceShaanxiProvincialExpresswaynetworkingtollsystemoverview3.1database-tiersystems,managementsystems,branch-levelmanagementsystem,theprovincialnetworkcentresplitandtransfersystem,four-levelsystem.Eachsystemhasitsownseparatedataserverisusedtostoretheircollectionofpremiumbusinessdata,providethebasisforstatisticalanalysis.1,stand-levelserverstoragefeescollectedfromtolllanesflowingdataandpassonthissiteblessingKaku,cartridgeinformationwithinthissite,cardboxallocation,cartridgecombinationofinformationandfrequencyinformation.2,themainstorageserverserverchargescollectedwaterfromunderthejurisdictionofthestationdataandthepassofblessingKaku,theinternalcartridgeinformation,reallocationofthecartridgeandcartridgecombination,personnelinformation,flightinformation,chargestheactualpaymentdataentrywork.3,Center-classserverstorageserverchargescollectedwaterfromunderthejurisdictionofthestationdataWaterdataintegritycanbeupandrunning.Sowhenadatabaseserverfails,youdonotneedtopassdatatorecover,simplythroughthecollectionprocedureforchargingwaterdatacollectiontocompletethefastrecoveryofserverfailures.4.4analysissummarysummaryanalysis,lanebecauseitisnotacompletestationleveldata,sothereisnoneedfordedicatedbackup.Stand-levelserverdatabecauseitisatthefrontofthechargeasawhole,itsfaultdirectlyaffectstheexercisenormally,youneedacompleteoffsitebackupsolution.Management,anddatacenterserver,duetoitsoperationswithoutmanualdataentry,sojustusecommonartificialscheduledbackupscanbe.5solutionsinordertoensurethatwhentheserverafterahardwarefailover,backupdatawithoutchangesoronlyminorchangescanbequickandeasytroubleshootingofserverdatarecovery,you定期掏油，防止污染。炉、灶烟囱应设置除尘、降噪设施，以降低烟尘排放和噪音污染。6、制定水、电、办公用品（纸张）的节约措施，通过减少浪费，节约能源，达到保护环境的目的。needtoselectthereal-timesynchronizationmethodoftheprogramme.Typicallybackupsystemcomeswithbackupsolutionsshouldbepreferred.Ifthesystemcomeswithabackupplanifitcannotmeettherequirements,softwaredevelopmentmethodsisneeded.Orthird-partysoftwaresystemsareselectedforbackup.Becausethird-partybackupsoftwareisusuallypricedveryhigh,chargingunitsrequirehighprice,soforonlythefirsttwomethodsarestudiedbelow.5.1useMSSQL2000synchronizedbackupsofSQL2000databaseinthreeways,namelysnapshotreplication,transactionalreplicationandmergereplication.Bycomparison,excludingthefirsttwoprogrammes,selectsynchronizationtransactionalreplicationanddatabaseNothwinddatabase,forexample,fortesting.Thethreepartsofthemainconsiderationsinthesynchronizationofthedata,canbethoughtofasthreehosts.ThePublisher,Distributor,andSubscriber;canbeunderstoodfromtheliteralmeaning,functionisactuallyimplementedtokeepsubscribersthroughtheDistributordatatimelyandconsistentdataatthePublisher.1,aboutsnapshotreplicationtocopydatachangesinfrequently,orarenotrequiredtokeepthedatacurrentvalues(lowlatency),snapshotdataisoneofthebestmethodsofdatareplication.Whensynchronizationoccurs,completesnapshotisgeneratedandsenttotheSubscriber.Becausesnapshotreplicationbulkcopiesreleased(itemscollection)acompletecopy,itwillpublishallwritesmadetothesnapshotfolder.Projectistospecifythatyouwanttocopytables,datapartitioning,ordatabaseobjects.Projectscanbeafulltableandcertaincolumns(usingaverticalfilter),certainrows(usingahorizontalfilter),astoredprocedureorviewdefinition,thestoredprocedureexecution,view,indexed,view,oruser-definedfunction.Snapshotreplicationdoesnotmaintaindatathefastestreal-timeupdates,andthebulkcopyreleased(itemscollection)afullcopyofthemechanismwillgeneratealotofnetworktraffic.Onlysmallvolumesofreplicationused,dataisstaticanddoesnotneedtobeupdatedinrealtimedatabase.SodonotusesnapshotreplicationthesynchronizationmodeDatatable,addanewdatafieldMSrepl_tran_version,publishingsoftwaredependingonwhetherthecontentsofthisfieldchangestodeterminewhetheryouneedtopublishthedata.AndSQL2000dataismodifiedjudgingismanagedbythekernel,notforexternalprogramming.Suchasmodifythestructureoftheoriginaldatatable,adirectresultofrunninglanesandmanagementsoftwarethatdoesn"twork.DuetotheabovetestresultstoprovethatthisscenarioisnotsuitableasabackupmethodfornetworkingtollsysteminShaanxiProvince.5.2usingspeciallydevelopedbackupsoftwareaftertheabovetests,throughthesystem"ssubscriptions,publishmethodinShanxiprovinceunderthenetworkingsoftwaresyncbackup,demandcannotbemet,backupsoftwaresoIdecidedtouseforthedevelopmentofsynchronization,synchronizebackups.Asaresultofindependentdevelopment,ithasahighdegreeofflexibilityinbackup.Easierforseamlessintegrationwithexistingsystems.Backupsoftwaredevelopedforthesynchronization,youmustmeetthefollowingrequirements:inordertoensuresynchronousbackupsoftwarecanstartonWindowsstartup,andarenoteasilyshutdownbytheoperation,itshouldbedevelopedusingaWindowsservice.Synchronizebackupsoftwareisthesoftwarethatruns24hours,mustbeabletosteadyoperation.Inordertoreducenetworkbandwidthtothegreatestdegreeinthebackup,andonlyneedtobackupthetollingsystemgeneratesthenewdatatable.Thebackupsoftwareshouldbeabletoautomaticallyfiltertheaddnewdatainadatabasetable,andsynchronizedbackupsofdatathatmeetstheconditionsofform.FlagsfieldofthecurrentchargingsystemusingadedicatedTransferMark,anykindoftollsystemsoftwareafterchangingtherecord,bothonthefieldiszero,thisrecordhasbeenchangedtonotifyothersoftware.Usethisfieldasaflagtoidentifywhetherdatahaschanged.Inadditiontothisfield,-17-'