土方开挖施工方案（Earthworkexcavationconstructionplan）

'土方开挖施工方案(Earthworkexcavationconstructionplan)Earthworkexcavationscheme1,constructionpreparationTheprotectionmeasureonlinemeasurementandpilepoint(1)intheexcavationbefore,alltheredlinepositioningpilepileandbuildings・Clearpositioningpileisdisplacement,iftheshiftshouldbemeettheplanningdepartment,theconstructionunitofthetreatmentschemeandcorrection.(2)temporaryfacilitiesonthesidelinesandthevenueoftheroadtolocatemarkers,forobservation.(3)beforetheexcavationoffoundationpitexcavation,tosurveyonthemouthofthelimelineaccordingtothepileaxisandtheslopingexcavation,foundationpitconstructiondrawingsapproved・(4)beforetheexcavation,withinthescopeofallaxispilesandexcavationarelevelingpointleadstotheconstructionactivitiesoutsidetheregion,withstakesdeephitnailnailsandprotect・(5)allthestakes,aredlinemeasurementafterverification,projectdepartmentshouldimplementthepersontocarryoutregularinspectionsofthereview,toensuretheaccuracyoftheredline・2,nightlightingforconstructionDuringtheexcavation,thenightlightingelectricity: A,alltheelectricitydistributionboxcanbeequippedwiththeinnerleadfromthescenebymovingthedistributionboxtotheexcavationarea・B,nightlightingconstructionwithinthescopeoftheactivitiesofeachlampholder,lampholdermounting1000Wlamp.C,onthesite,theslopepositionasthelightsputacertainnumberof.1,thefoundationpitexcavationmethodUsingmechanicalexcavation,artificialKiyomotoway.(1)excavationslopeAccordingtothegeologicalsurveyreportdataandon-the-spotobservation,foundationsoilbetter.Accordingtotheconstructionspecification,mechanicalexcavationaccordingtothedesignelevationof20cmbymanualcleaning・Theslopeexcavation1:0.33.Digginganote:Apitexcavationmustbeinstrictaccordancewiththeconstructionplan,prohibitedoverbreak,basalsoildisturbanee.Bothermaterialsshallnotbearbitrarilystackedaroundthepit.Cexcavationshouldhaveadequatelighting,electricianshouldbeondutydayandnight・ 1,theexcavationqualityassurancemeasuresA,beforestartingtodoalllevelsoftechnicalpreparationsandtechnicalwork・Constructionandtechnicalpersonnel(Foreman),measurementpersonnelshouldbefamiliarwiththedrawings,graspthepositionandthesizeoffieldmeasurementofpileandlevelingpoints・Equippedwithfull-timepersonnelforqualitycontrolmeasure・B,inatimelymannertocomplexandgrayline,theexcavationlineonthebottomoffoundationpitunderthemouth・Tocontroltheexcavationelevation,do5mexcavationworkingface,theelevationoflimepointwillnotbelessthan2.C,theexcavationiscompleted,theconstructionunitshallsubmitareporttotheorganization,design,explore,supervisiondepartment,inspectiontank,D,seriouslyimplementtheformulationoftechnology,qualityprojectmanagementsystem・Theconstructiontoaccumulatetechnicaldata・(3),theexcavationsafetyrequirementsandsafetyassurancemeasuresA,beforestartingtodosafetyworkatalllevels・Accordingtotheengineeringconstructionmachinery,setupsafetymeasures,organizeworkerstoimplement,andregularlycarryoutsafetyactivities・B,beforeconstructionmanagementpersonnel,teamsafetytestsandtechnicalcommunication. A,andhangingsafetywarningintheapparentpositionofbrand・B,electricalconstructionsitesafety・C,goodlightingandnightconstructionsafetyprotectionwork・D,aftertheexcavationtominimizesoildisturbance,thepitbottomabove30cmsoilbyartificialexcavation,mechanicalexcavationisstrictlyprohibited・E,topreventthepitslopestraightrough,unevenbasesize,inadequate,strengtheninspection,cutandrepair,andearnestacceptance.Askquestionsinknowledgebaseofchannelchannelhomeusersaskactivitiesletmallcomputer/digitallifeHomeFurnishingQQareasportsgameentertainment/leisure/hobbyStarArt/literature/socialsciencehumanitieseducation/health/medical/commercial/financialemotionalfamilyareaall>>>lifeHomeFurnishingdecorationproblempageopenedreddiamondnoble,100thousandsetsofQQshowwearfree!TheproblemofspacereproducedtobroadcasttotheTencentmicro-blogfoundationpitconstructionschemehasbeensolved[2009-11-26]seeTags:Constructionoffoundationpit09:26Theprojectofrainwaterandsewagepipesslottedpipepitdepthgreaterthan3meters,thesupervisionrequirementsofspecialconstructionscheme,whichisrelatedtothepeerexcavationschemepleasebegratefultosharemymodifications!Answer:80% Landlord,pleasegotowww.gongl23・Com(thetwolineisaURL)Todownloadtheprogramoffoundationpitconstruction,allfreeSupplementaryanswer:ThefirstsectionofthedeepfoundationpitconstructionschemeTheplanfortheconstructionplanofdeepfoundationpit,theplanincludesrow(down),water(excavationbackfill)program,supportingstructure,foundationpitmonitoringetc・・Thefoundationpitmonitoringbyprofessionaltestingcompanymonitoring.First,theconstructionofdeepfoundationpitpitdrainage,precipitationmethodIntheprocessofexcavation,whentheexcavationbottomelevationbelowthegroundwaterlevel(orgroove),becausethesoilaquiferiscut,groundwaterwillcontinuetopenetratethepit・Groundwater,notonlyexcavationdifficult,time-consuming,theslopeiseasytocollapse,andwillleadtothefoundationbywaterimmersion,disturbedsoil,afterthecompletionoftheprojectbuildingcausedbytheunevensettlementofthebuilding,crackingorfailure・Therefore,foundationpitexcavationconstruction,shouldbebasedontheengineeringgeologicalandhydrogeologicalconditions,takeeffectivemeasurestoreduceundergroundwaterlevel,theexcavationandconstructiontoachievetheanhydrousstate,inordertoensuretheengineeringqualityandthesmooth progressoftheproject・1,drainagemethod:Manymethodstoreducethegroundwaterlevel,trenchexcavation,thisprojectmainlyadoptsaditchandsumpdrainagemethod・Inordertoensuretheexcavationoffoundationpitslopestability,sothatnowaterinthepit,takethefollowingmeasures・(1)outsidethefoundationpitdrainage,takea1.2mwideapronslopearoundthefoundationpit,surfacewaterwillbecutbythreetimesinalltheadmission,afterprecipitation,enteringthecityundergroundwaterway.(2)thefoundationpitdrainage,taketheformationofgulliesinthepitbottombrickside,intheminingwaterditchendsset,thespecificsizeisasfollows:thegullieswereobtrapezoid,mouthwidth500mm,mouthwidth300mm,belowthebottom0.5m.Thesetofwellswithdiameterof0.8mandbelowthebottomelevationoflm,placingthesubmersiblepumpsincollectingwellwithinthecatchmentafterthesubmersiblepumphoseliftflowtothevenueinming.By2,drainageequipmentPitdrainageusedindynamicwaterpump,generalelectric,motor,andvacuumsiphonpumpetc・・Theselectionofpumptype,drainagepumpforpitis1.5-2timeswater・WhenthepitinflowisQ<20m3/h,theavailablediaphragmpumporsubmersiblepump;whentheQin20-60m3/h,oravailable diaphragmtypecentrifugalpump,orsubmersiblepump：whentheQ>60m3/h,multiusecentrifugalpump・Diaphragmpumpdrainagequantityissmall,butnotmuddywater,shouldbechosenaccordingtothetechnicalperformanceofthepumpselection・Accordingtotheactualamountofwater,decidedtousethenumberandmechanicalmodelofprecipitation.Whenthegushingwaterisverysmall,orahumanhandpumpbucket,orwatervehicleswilldischargewater・Programtwo,earthworkexcavation(a)theoverallorderandmethodofearthworkexcavationThemechanicalengineeringearthworkdelaminationexcavation,thelayerthicknessof20mmorso,andthefoundationpitexcavationandretainingmechanicalcrosssynchronously,digtodesignelevationof300mmatthebottomofthepitstopintotheartificialexcavation,pickingupthebottomedge・(two)mechanicalexcavationmethod1,themainequipment:(1)diggingmachinery:excavators,bulldozers,dumptrucksetc.・(2)generalmachinehasashovel(twosharp,flat),trolleys,smallwhitelinesor20wireandsteeltapeandslopeetc・・2,theoperatingconditions:(1)beforeexcavation,accordingtotherequirementsofthe constructionprogram,theconstructionareaoftheundergroundandgroundobstaclesremovedanddisposedof.(1)thepositionorlocationofbuildingsorstructuresofthecontrolline(pile),thestandardsizeofpileandtheslotofthegrayline,mustpassthetest;andafterfinishingprescreeningprocedures・(2)nightconstruction,shouldhaveadequatelightingfacilities;shouldsetsignsindangerousareas,andtheexcavationinordertomakereasonablearrangements,Topreventwrongdigoroverbreak.(3)excavation,undergroundwatertankditch,shouldaccordingtolocalengineeringgeologicaldata,takemeasurestoreducetheundergroundwaterleve1.Generaltotheexcavationsurfacebelow0.5m,andthentotheexcavation・(4)constructionmachinerytoenterthesitethroughroads,bridgesandunloadingfacilities,shouldbecheckedwhennecessarytobestrengthenedandwidenedandotherpreparatorywork.(5)selectearthmovingandconstructionareashouldbebasedontheterrainandtheoperatingconditions,soiltypeandthickness,thetotalprojectamountandtimeintoconsideration,inordertobeabletoplaytodeterminetheefficiencyoftheconstructionmachinery,goodconstructionplan・(6)theconstructionarearunningroutelayoutshouldbedeterminedaccordingtotheengineeringworkareasize,mechanicalproperties, distanceandtopographyetc・・(1)toworkintheconstructionmachinerypartsandrepairslope,clearbottom,shouldbeequippedwithmanual.(2)familiarwiththedrawings,technicalwork・1,process:Todeterminetheorderofexcavationandslope,theaveragediggingdowntoseparatetrimmingandtheendoftheQing(1)excavationpit(groove)orpipetrench,reasonableexcavationsequence,therouteandthedepthofexcavation.(1)theexcavationshouldbeconductedsequentiallyfromtoptobottomlayerdivision.Atacertainslopepotential,inordertodischarge・(2)intheexcavationprocess,shouldalwayscheckthetankwallandtheslopeofthestate・Thedepthismorethan1.5m,accordingtothechangeofsoilshoulddothepit(groove)ortrenchsupportpreparation,topreventcollapse・(3)theexcavationpit(groove)andtrench,notdigtodesignelevation,suchastheinaccuratedigtodesignelevationofbasement,thedesignelevationabovethepersistencelayerofthesoildonotdig,inordertocopyflat,bymanualexcavation・Thepersistencelayer:Generalbulldozerscraper,excavation,isabout20cm;withtheshovel,shovelshovelandbackhoedigging,forabout30cmbetter・ (1)intheconstructionmachinerynotdigtheearth,atanytimewithartificialmining,andthesoiltransportedtomachinerydugintoplacewithtrolleys,soastousemachinerytopoach・(2)tohelprepairandbottomcleaning・Inthegroovebottomelevationdesign50cmslotwall,makeahorizontalline,woodennailJue,thenartificialsoilwillstayaway.Atthesametime,bothendsoftheaxis(centerline)(withasmallpilepulllineleadwireorwire),checkfromtheslotsize,determinetheslotwidthstandard,thistrimmingslot・Finallyclearthebottomofearth.(3)thebottomlevelofrepair,qualityinspectionandacceptance.(two)attheendoftheartificialpickingupmethodAftertheformationofthefoundationpitaccordingtoestablishedbuildingaxiscontrolnetworkandelevationcontrolpile,theaxisofelevationmeasuringinthepit,andsetuptemporaryaxisinthepitmeasuringcontrolnetwork,setthebasiccushionborderline,asartificialpickingupthebottomofthebottomshouldbeusedtopickuptheartificialshovelexcavation,shouldpayattentiontotheelevationofbasementexcavationintheprocess,topreventexcessiveexcavation,checkslotwasinvitedtoowners,supervision,qualitysupervisiondepartmentsbeforeartificialexcavation.(three),earthworktransportationandstacking Theexcavationoffoundationpit(groove)oftheearth,inthesiteconditionsofpile,soilbackfillwithsomegoodenough;theexcessearthshouldonceaway,toavoidthetwohandling・Transportedtothedesignatedplaceforpilingearthworkowners.Intheyard,theearthwillbeaccordingtotheclassificationofsoilpile,namelymiscellaneousfillfilledstackedtogether,siltyclayandsiltpiledtogetherinsandpiledtogether,gravel,gravelpile,expansivesoilpiledupalone・Three,earthworkbackfillingprogramSupplementaryanswer:(a)mainequipment:1,shipmentofearthmovingmachinery:loaders,excavators,dumptrucksetc•・2rollingmachinery:flatgrinding,kneadingandvibrating・3,generalmachinehasafrogoradieselrammer,trolley,shovel,steeletc・・(two)operatingconditions:1,beforetheconstructionshouldbebasedonthecharacteristicsoftheprojectandthebackfillmaterialtype,densityrequirementsandconstructionconditions,reasonablydeterminethebackfillmaterialmoisturecontrol,thicknessandcompactionparameters: Animportantbackfillearthwork,theparametersshouldbedeterminedbythecompactiontest・1,tofillthefillingbeforethesubstrateandthefinishedprojectinspectionandacceptanceofthemiddle,afterpassinginspectionandacceptanceproceduresneedtobehidden.2,beforetheconstruction,shoulddothelayoutlevelheightmark・Suchasalargepitorditcheverylmnailonthelevelofmarkorcopythestandardelevationpointsinfixedontheadjacentbuildings.Alargeareaofgroundfloororatadistanceonthelevelofpilenai1.3,determinetheroutesofgoodearthmovingmachineryandvehicles,shouldbecheckedwhennecessarytowidenthepreparatoryworkofreinforcement・Atthesametimetopreparegoodconstructionplan.(three)process:Thepitbottomfloorcleaning,inspection,soillayers,soilcompactiontest,layeredcompactness,levelingfinishingacceptance1,whenthefirstclearbasalroots,water,siltandorganicdebris•・2,testofsoil.Testtypes,backfillmaterialsize,thereisnodebris,compliance,andsoilwatercontentiswithinthecontrol;suchashighwatercontent,canbeusedtoloose,dryormixedintodrysoilandothermeasures;ifthewatercontentislow,thewaterwettingandothermeasuresinadvance・ 1,thefillingshouldbelayeredspreading・Thethicknessofsoillayers,soilcompactionshallbedeterminedaccordingtotherequirementsandequipmentperformance・BackfillsoilthicknessandcompactiontimesofeachlayerCompactingmachineThicknessofsoillayers(mm)Eachlayercompactiontimes(Times)FlatgrindingFrom200to300From6to8SheepfootrollerFrom200to350From8to16RammingmachineFrom200to250From3to4 BulldozerFrom200to300From6to8TractorFrom200to300From8to16ArtificialrammingNotmorethan200From3to41,whenrollingwheel(RAM)trackshouldbemutuallyoverlapped,preventleakageorleakageofpressurecompaction.Thelengthandwidthofthelarger,shouldfillinsubsection.Thejointsshallbemaintainedoneachslope,thegrindingtraceoverlap・Theoverlapofabout0.5~1・0m,theupperandlowerdislocationdistanceshouldnotbelessthanlm.2,fillbeyondthesubstratesurface,shouldensurethecompactionqualityoftheedge・Afterfilling,suchasthedesigndoesnotrequiretrimmingofslopeshouldbefilled,fillthe0.5mwideedge;suchasdesignrequirementsofslopeHsiupingtapped,widefillcanbe0.2m.3,tofillinthemechanicalconstructionofrolledparts,should becombinedwithartificialsoilfilling,breaststrokerammingmachineordiesellayeredtampingcompaction.1,eachlayerofbackfillcompaction,shouldaccordingtotherulesofringsampling,measurethemassdensityofdrysoil,tomeettherequirements,andthenspreadtheupperlayersoil.2,fillallcompleted,thesurfaceshouldbecableleveling,wheremorethanthestandardheight,timelyaccordingtolinelevel;wheretheelevationislowerthanthestandard,shouldfillsoillevelingcompaction.Four,supportingstructure(a)theearthworkengineeringsupportingstructurewithsoilnailing.(two)thestructureofsoilnailingwallsoilnailingreinforcementoffoundationpitwallsoilandcoveretc・・Itisinsertedintothesoilreinforcementandsoilfulllengthbonding,andsprayedconcreteinthesurface,therebyformingareinforcedsoilreinforcementzone,inordertoimprovetheinsitusoilstrengthandthedisplacementvalue,atthesametime.Strongfoundationpitslopeslopestability.(three)process:Workingfaceexcavation,intothehole,reinforced,grouting,concretepavement,pulloutforcetestWiththelayeredconstructionoftheexcavationface1,soilnailwallconstruction・ 2,holeformingtechnologyandmethodandsoilconditions・Machineryequipmentandtheconstructionunitoftherelevantmeasuresandexperience・In3,thebandbefore,thebestuseofcleanwasteresidueinsoilporeanddisturbanceofcompressedair・1,soilnailinggroutingbygroutingpump,slurrywith1:2cementmortar.2,inordertopreventsoilrelaxationanddisintegration,mustbethefirstlayerofshotcreteassoonaspossible・Thetemporarysupportofthesurfacelayerofalayer,thethicknessof50-150mm;permanentsupportsurfacelayertwoorthreelayers,thethicknessof100-300mm.SprayedconcretestrengthgradeofnotlessthanC15・Intheshotcrete,steelmeshset・Thesteelmeshspacingbytwowere200-300mm,6-10mmdiameter,1-2layerisarrangedonthesurfaceofshotcretein.3,screwpull-outtestbyprofessionalunitsandpersonne1.'