新疆高速铁路路基工程重力式挡土墙施工作业指导书

'兰新铁路第二双线（新疆段）LXTJ4标段重力式挡土墙施工作业指导书重力式挡土墙施工作业指导书1、目的明确重力式挡土墙施工工艺、操作要点和相应的工艺标准，指导、规范挡土墙工程施工。2、编制依据《高速铁路路基工程施工技术指南》铁建设[2010]241号《铁路混凝土工程施工技术指南》铁建设[2010]241号《高速铁路路基工程施工质量验收标准》TB10751-2010《铁路混凝土施工质量验收标准》TB10424-20103、适用范围中铁四局兰新铁路第二双线LXTJ4标三工区三项目队重力式挡土墙工程施工。4、重力式挡土墙的技术要求4.1重力式挡土墙的一般规定（1）挡土墙所用片石、水泥、粗骨料、细骨料、矿物掺合料、外加剂、钢筋等材料的品种、规格、质量应符合设计要求。施工所用混凝土应用机械拌和，不得直接在现场人工拌和。（2）基坑开挖时应采取临时支护措施保持边坡稳定。基坑开挖较深、边坡稳定性较差时，应分段跳槽开挖，并及时灌注基础混凝土封闭。（3）基坑开挖过程中应避免对墙趾处持力岩土层的扰动，并避免雨水浸泡基坑。（4）明挖基坑开挖底面应完整，无损伤、无浮渣。台阶的平、立面应平顺，斜面基底应平整、无贴补。（5）明挖基坑底面地基承载力应符合设计要求。首段基坑地基承载力应经设计、施工、监理三方共同检验合格后方能进入下到工序施工。ConferenceisbyCouncilpartyresearchdecidedheldofonceimportantConference,maintaskisin-depthlearningimplementXIGeneralSecretaryseriesimportantspeechespeciallyon"twolearnado"learningeducationofimportantindicatesspirit,accordingtoCentral,andprovincialandmunicipaloninallmembersinthecarriedout"learnConstitutionPartyrules,andSpeechseries,bequalifiedpartymembers"learnthedeploymentrequirementsofeducation,forme"two"educationworkarrangements,educationandguidancedirectlyundertheworksofpartymembersandfurtherstrengtheningtheconvictioninideal,keepingfaithfultothepartyandsetupbreezeupright,play,dare,tospeedupwaterconservancyreformanddevelopmenteffortstoprovideastrongorganizationalguarantee.Justnow,theXXgayannouncedmunicipalwatersystems"two"isFertilizationsystem,unitsofthepartyorganizationinaccordancewiththeimplementationplan,payingcarefulattentiontoimplementation.Thefollowing,accordingtothespiritoftheCentral,provincialandmunicipalpartyCommittee,andconductedmymunicipalwatersystem"two"studyandeducation,Iwishtomakethreepoints.A,anddeepawarenesscarriedout"twolearnado"learningeducationofimportantmeaningpartyof18bigyilai,toXIcomradeforGeneralSecretaryofCentral,aroundfullstrictlyrulepartymadehasseriesmajordeployment,playedhasastrictlyrulepartyofcombinationfist,hascarriedouthaspartyofmasslineeducationpracticeactivities,"threestrictthreereal"topiceducation,forsolutionmemberscadresespeciallyCountyatlevelaboveleadersexistsofhighlightproblem,advancefullstrictlyrulepartyuptohasveryimportantofrole,tubepartyrulepartylostofYuwide,andLostintheloose,soft-lostproblemhasbeengreatlyimproved,rankstheoverallqualityhasbeengreatlyimproved.Butalsoto中铁四局集团有限公司兰新铁路第二双线项目部-9- 兰新铁路第二双线（新疆段）LXTJ4标段重力式挡土墙施工作业指导书（6）挡土墙模板应支撑牢固、无变形、漏浆。模板及支架应具有足够的强度、刚度和稳定性，连接牢固，能承受所浇筑混凝土的重力、侧压力及施工荷载。在浇筑混凝土前，应对模板及支架进行验收。施工过程中应对模板及支架进行检查和维护，发现异常情况时应及时处理。（7）挡土墙墙面应平顺整齐。墙顶、两端面与基础连接处应密贴封严。（8）挡土墙墙身及基础沉降缝的预留与塞封应符合设计要求，接缝平直、塞缝严密。沉降缝应为贯通缝，严禁切割墙体设置假缝。（9）泄水孔孔径应符合设计要求，孔位应按上下左右间隔2～3m交错布置，墙背易积水处及反滤层最低处必须设置。最低一排泄水孔应设置在反滤层底部，其向外排水坡坡度不应小于4%。（10）墙后反滤层袋装砂加卵石层设置的位置、构造尺寸及厚度应符合设计要求。5、重力式挡土墙施工工艺5.1施工工艺流程图（图5.1）ConferenceisbyCouncilpartyresearchdecidedheldofonceimportantConference,maintaskisin-depthlearningimplementXIGeneralSecretaryseriesimportantspeechespeciallyon"twolearnado"learningeducationofimportantindicatesspirit,accordingtoCentral,andprovincialandmunicipaloninallmembersinthecarriedout"learnConstitutionPartyrules,andSpeechseries,bequalifiedpartymembers"learnthedeploymentrequirementsofeducation,forme"two"educationworkarrangements,educationandguidancedirectlyundertheworksofpartymembersandfurtherstrengtheningtheconvictioninideal,keepingfaithfultothepartyandsetupbreezeupright,play,dare,tospeedupwaterconservancyreformanddevelopmenteffortstoprovideastrongorganizationalguarantee.Justnow,theXXgayannouncedmunicipalwatersystems"two"isFertilizationsystem,unitsofthepartyorganizationinaccordancewiththeimplementationplan,payingcarefulattentiontoimplementation.Thefollowing,accordingtothespiritoftheCentral,provincialandmunicipalpartyCommittee,andconductedmymunicipalwatersystem"two"studyandeducation,Iwishtomakethreepoints.A,anddeepawarenesscarriedout"twolearnado"learningeducationofimportantmeaningpartyof18bigyilai,toXIcomradeforGeneralSecretaryofCentral,aroundfullstrictlyrulepartymadehasseriesmajordeployment,playedhasastrictlyrulepartyofcombinationfist,hascarriedouthaspartyofmasslineeducationpracticeactivities,"threestrictthreereal"topiceducation,forsolutionmemberscadresespeciallyCountyatlevelaboveleadersexistsofhighlightproblem,advancefullstrictlyrulepartyuptohasveryimportantofrole,tubepartyrulepartylostofYuwide,andLostintheloose,soft-lostproblemhasbeengreatlyimproved,rankstheoverallqualityhasbeengreatlyimproved.Butalsoto中铁四局集团有限公司兰新铁路第二双线项目部-9- 兰新铁路第二双线（新疆段）LXTJ4标段重力式挡土墙施工作业指导书5.2施工方法（1）测量放样用全站仪放样出基坑开挖边线桩位并测量桩顶标高，按照桩位及桩顶标高进行挂线并撒白灰线。（2）基础开挖基坑采用350挖机进行开挖，开挖长度根据挡土墙伸缩缝设置间距进行跳槽开挖，一般为15m。机械开挖至基底设计标高以上20cm时，重新进行测量放样，确定开挖正确不偏位的情况下改用人工进行基底清理，确保基底符合设计及相关规范要求。按照白灰线进行开挖，并需要挂线，开挖时不得扰动基础底层土层，基坑尺寸及基底标高必须符合设计要求。（3）基坑验收现场技术人员对基坑的宽度、深度、边坡坡度和轴线进行检查合格后，报请监理工程师验收。（4）反滤层施工方法①人工清理反滤层范围松土，立模浇筑反滤层底部封闭砼。②待反滤层底部封闭砼强度达到70%开始堆码反滤层砂袋。反滤层砂袋应交错搭接堆码以保证堆码的稳定性。（5）挡土墙模板安装施工方法①片石砼挡墙均采用钢模，模板采用槽钢进行加固。②模板与型钢进行电焊，形成整体模板。模板采用钢管进行支撑,内设拉筋。③模板加固采用16#双拼槽钢，模板外侧第一层槽钢沿线路方向布置，双拼槽钢间距为2cm，第二层竖向加固槽钢采16#槽钢，间距为1m。（6）挡土墙片石砼浇筑方法ConferenceisbyCouncilpartyresearchdecidedheldofonceimportantConference,maintaskisin-depthlearningimplementXIGeneralSecretaryseriesimportantspeechespeciallyon"twolearnado"learningeducationofimportantindicatesspirit,accordingtoCentral,andprovincialandmunicipaloninallmembersinthecarriedout"learnConstitutionPartyrules,andSpeechseries,bequalifiedpartymembers"learnthedeploymentrequirementsofeducation,forme"two"educationworkarrangements,educationandguidancedirectlyundertheworksofpartymembersandfurtherstrengtheningtheconvictioninideal,keepingfaithfultothepartyandsetupbreezeupright,play,dare,tospeedupwaterconservancyreformanddevelopmenteffortstoprovideastrongorganizationalguarantee.Justnow,theXXgayannouncedmunicipalwatersystems"two"isFertilizationsystem,unitsofthepartyorganizationinaccordancewiththeimplementationplan,payingcarefulattentiontoimplementation.Thefollowing,accordingtothespiritoftheCentral,provincialandmunicipalpartyCommittee,andconductedmymunicipalwatersystem"two"studyandeducation,Iwishtomakethreepoints.A,anddeepawarenesscarriedout"twolearnado"learningeducationofimportantmeaningpartyof18bigyilai,toXIcomradeforGeneralSecretaryofCentral,aroundfullstrictlyrulepartymadehasseriesmajordeployment,playedhasastrictlyrulepartyofcombinationfist,hascarriedouthaspartyofmasslineeducationpracticeactivities,"threestrictthreereal"topiceducation,forsolutionmemberscadresespeciallyCountyatlevelaboveleadersexistsofhighlightproblem,advancefullstrictlyrulepartyuptohasveryimportantofrole,tubepartyrulepartylostofYuwide,andLostintheloose,soft-lostproblemhasbeengreatlyimproved,rankstheoverallqualityhasbeengreatlyimproved.Butalsoto中铁四局集团有限公司兰新铁路第二双线项目部-9- 兰新铁路第二双线（新疆段）LXTJ4标段重力式挡土墙施工作业指导书①片石混凝土采用分层浇筑，浇筑过程中，严格按照配合比拌制砼，砼中片石的掺量控制在30%范围以内。片石用手工摆放，分散布置。②采用插入式50型振动棒进行振捣，砼振捣密实，振捣过程中快插慢抽。无漏振，无蜂窝麻面等。③在片石砼浇筑过程中，现场取样制作砼试件，标准养护28天后送中心试验室检测。（7）砼养护方法①在未拆模的混凝土养护期间，砼终凝（浇筑完约12－18小时）即立刻开始进行养护，挡墙顶采用无纺布覆盖包裹、浇水、喷淋洒水措施进行保湿，潮湿养护，养护期间要一直保持湿润状态，保证模板接缝处不至失水干燥。为了保证顺利拆模，可在混凝土浇筑48h后略微松动模板连接螺栓，并继续浇水养护至拆模后。②混凝土拆模时立即对表面涂刷养护液（要求拆除一块，涂刷一块），养护液涂刷均匀（分2次涂刷，合计1kg养护液喷洒5～6㎡混凝土面），严禁漏刷，涂刷完养护液后立即覆盖节水养护薄膜+黑心棉+塑料薄膜，要注意覆盖平整且不得漏盖，覆盖完成后固定牢固。包裹、覆盖期间，内表面应具有凝结水珠。挡墙顶部平台上设置养护大塑料水桶时刻流水养护。③养护用水温度低于砼表面温度时，二者温差不得大于15℃。④砼养护期间，要定时测定砼芯部温度、表面温度以及环境气温，并作好养护期间的测温记录。（8）沉降缝：ConferenceisbyCouncilpartyresearchdecidedheldofonceimportantConference,maintaskisin-depthlearningimplementXIGeneralSecretaryseriesimportantspeechespeciallyon"twolearnado"learningeducationofimportantindicatesspirit,accordingtoCentral,andprovincialandmunicipaloninallmembersinthecarriedout"learnConstitutionPartyrules,andSpeechseries,bequalifiedpartymembers"learnthedeploymentrequirementsofeducation,forme"two"educationworkarrangements,educationandguidancedirectlyundertheworksofpartymembersandfurtherstrengtheningtheconvictioninideal,keepingfaithfultothepartyandsetupbreezeupright,play,dare,tospeedupwaterconservancyreformanddevelopmenteffortstoprovideastrongorganizationalguarantee.Justnow,theXXgayannouncedmunicipalwatersystems"two"isFertilizationsystem,unitsofthepartyorganizationinaccordancewiththeimplementationplan,payingcarefulattentiontoimplementation.Thefollowing,accordingtothespiritoftheCentral,provincialandmunicipalpartyCommittee,andconductedmymunicipalwatersystem"two"studyandeducation,Iwishtomakethreepoints.A,anddeepawarenesscarriedout"twolearnado"learningeducationofimportantmeaningpartyof18bigyilai,toXIcomradeforGeneralSecretaryofCentral,aroundfullstrictlyrulepartymadehasseriesmajordeployment,playedhasastrictlyrulepartyofcombinationfist,hascarriedouthaspartyofmasslineeducationpracticeactivities,"threestrictthreereal"topiceducation,forsolutionmemberscadresespeciallyCountyatlevelaboveleadersexistsofhighlightproblem,advancefullstrictlyrulepartyuptohasveryimportantofrole,tubepartyrulepartylostofYuwide,andLostintheloose,soft-lostproblemhasbeengreatlyimproved,rankstheoverallqualityhasbeengreatlyimproved.Butalsoto中铁四局集团有限公司兰新铁路第二双线项目部-9- 兰新铁路第二双线（新疆段）LXTJ4标段重力式挡土墙施工作业指导书挡土墙沿线路方向每隔15m设伸缩缝，缝宽0.02m，缝内用沥青麻筋全断面填塞，以保证砌体能自由沉降。沉降缝整齐垂直，上下贯通。6、施工材料技术要求6.1片石（1）片石砼用石以普通片石为主，片石应选用质地坚硬、不易风化、无裂纹，无水锈，表面的污渍及泥土要清除干净。严禁使用层理严重、强度不足及山皮水锈的片石。（2）普通片块中部厚度不小于15cm。镶面片石应有两个大致平行面，且厚度不小于15cm，外露表面基本平整，平面形状应四边形以上（不得用三角形），最短边长度不小于20cm，最长边长度30cm～50cm。（3）每一料场抽样检验2组片石抗压强度试件，强度应不低于MU30。每100米坡面抽样检验6处片石规格。（4）片石的软化系数不小于0.86.2混凝土（1）混凝土强度等级及使用材料的品种、规格、质量必须符合设计要求。（2）混凝土必须有拌合站统一拌制，由混凝土罐车运输至工地。7、机械、人员配备7．1机械配备序号机械名称规格型号单位数量1挖掘机PC350台12混凝土振捣棒φ50个33混凝土拌和站HZS120台24混凝土泵车HBT37台15混凝土运输车8m3辆8ConferenceisbyCouncilpartyresearchdecidedheldofonceimportantConference,maintaskisin-depthlearningimplementXIGeneralSecretaryseriesimportantspeechespeciallyon"twolearnado"learningeducationofimportantindicatesspirit,accordingtoCentral,andprovincialandmunicipaloninallmembersinthecarriedout"learnConstitutionPartyrules,andSpeechseries,bequalifiedpartymembers"learnthedeploymentrequirementsofeducation,forme"two"educationworkarrangements,educationandguidancedirectlyundertheworksofpartymembersandfurtherstrengtheningtheconvictioninideal,keepingfaithfultothepartyandsetupbreezeupright,play,dare,tospeedupwaterconservancyreformanddevelopmenteffortstoprovideastrongorganizationalguarantee.Justnow,theXXgayannouncedmunicipalwatersystems"two"isFertilizationsystem,unitsofthepartyorganizationinaccordancewiththeimplementationplan,payingcarefulattentiontoimplementation.Thefollowing,accordingtothespiritoftheCentral,provincialandmunicipalpartyCommittee,andconductedmymunicipalwatersystem"two"studyandeducation,Iwishtomakethreepoints.A,anddeepawarenesscarriedout"twolearnado"learningeducationofimportantmeaningpartyof18bigyilai,toXIcomradeforGeneralSecretaryofCentral,aroundfullstrictlyrulepartymadehasseriesmajordeployment,playedhasastrictlyrulepartyofcombinationfist,hascarriedouthaspartyofmasslineeducationpracticeactivities,"threestrictthreereal"topiceducation,forsolutionmemberscadresespeciallyCountyatlevelaboveleadersexistsofhighlightproblem,advancefullstrictlyrulepartyuptohasveryimportantofrole,tubepartyrulepartylostofYuwide,andLostintheloose,soft-lostproblemhasbeengreatlyimproved,rankstheoverallqualityhasbeengreatlyimproved.Butalsoto中铁四局集团有限公司兰新铁路第二双线项目部-9- 兰新铁路第二双线（新疆段）LXTJ4标段重力式挡土墙施工作业指导书7.2人员配备序号职务/工种人数1副队长12技术员23领工员14挖掘机司机15砂浆搅拌机操作员26混凝土运输车司机87混凝土泵车司机28普工20合计378、施工质量标准及检验方法8.1挡土墙基坑基坑各部尺寸允许偏差、检验数量及检验方法应符合10.1.38的规定。表10.1.38基坑各部尺寸允许偏差、检验数量及检验方法序号项目允许偏差施工单位检验数量检验方法1台阶尺寸±100mm每个基坑4点尺量2斜面基底坡率±1%每个基坑4点水平尺与楔形尺量计算3基底标高0mm50mm每个基坑5点测量仪器测量8.2挡土墙墙身墙身各部尺寸允许偏差、检验数量及检验方法应符合10.1.49的规定。表10.1.49墙身各部尺寸允许偏差、检验数量及检验方法ConferenceisbyCouncilpartyresearchdecidedheldofonceimportantConference,maintaskisin-depthlearningimplementXIGeneralSecretaryseriesimportantspeechespeciallyon"twolearnado"learningeducationofimportantindicatesspirit,accordingtoCentral,andprovincialandmunicipaloninallmembersinthecarriedout"learnConstitutionPartyrules,andSpeechseries,bequalifiedpartymembers"learnthedeploymentrequirementsofeducation,forme"two"educationworkarrangements,educationandguidancedirectlyundertheworksofpartymembersandfurtherstrengtheningtheconvictioninideal,keepingfaithfultothepartyandsetupbreezeupright,play,dare,tospeedupwaterconservancyreformanddevelopmenteffortstoprovideastrongorganizationalguarantee.Justnow,theXXgayannouncedmunicipalwatersystems"two"isFertilizationsystem,unitsofthepartyorganizationinaccordancewiththeimplementationplan,payingcarefulattentiontoimplementation.Thefollowing,accordingtothespiritoftheCentral,provincialandmunicipalpartyCommittee,andconductedmymunicipalwatersystem"two"studyandeducation,Iwishtomakethreepoints.A,anddeepawarenesscarriedout"twolearnado"learningeducationofimportantmeaningpartyof18bigyilai,toXIcomradeforGeneralSecretaryofCentral,aroundfullstrictlyrulepartymadehasseriesmajordeployment,playedhasastrictlyrulepartyofcombinationfist,hascarriedouthaspartyofmasslineeducationpracticeactivities,"threestrictthreereal"topiceducation,forsolutionmemberscadresespeciallyCountyatlevelaboveleadersexistsofhighlightproblem,advancefullstrictlyrulepartyuptohasveryimportantofrole,tubepartyrulepartylostofYuwide,andLostintheloose,soft-lostproblemhasbeengreatlyimproved,rankstheoverallqualityhasbeengreatlyimproved.Butalsoto中铁四局集团有限公司兰新铁路第二双线项目部-9- 兰新铁路第二双线（新疆段）LXTJ4标段重力式挡土墙施工作业指导书序号项目允许偏差施工单位检验数量检验方法1距线路中线距离+20mm0mm3处测量仪器测量、尺量2墙身厚度（前缘至后缘）+20mm0mm3处尺量3顶面高程±20mm3点测量仪器测量4泄水孔间距±20mm抽样检验10%尺量5起讫里程±100mm全部检验测量仪器测量、尺量6沉降缝（伸缩缝）位置±50mm每道缝尺量7沉降缝（伸缩缝）位置±4mm6处尺量8.3挡土墙墙面墙面各部尺寸允许偏差、检验数量及检验方法应符合10.1.50的规定。表10.1.50墙面各部尺寸允许偏差、检验数量及检验方法序号项目允许偏差施工单位检验数量检验方法1垂直度h≤6m10mm3处吊线尺量2h>6m15mm3处吊线尺量3斜度±3%设计斜度3处坡度尺或吊线尺量4平整度20mm3处3.0m直尺，尺量8、施工安全措施8.1施工前，制定切实可行、安全可靠的措施，对施工人员进行明确的安全技术交底，施工中做到人到位、职务到位、责任到位、业务水平到位。8.2原则上不允许夜间装卸作业，必须在夜间作业时应有充足的照明设备。8.3行人、机械设备通过道口时或者跨越线路时，必须执行“一站、二看、三通过”制度，来车时不准抢越。ConferenceisbyCouncilpartyresearchdecidedheldofonceimportantConference,maintaskisin-depthlearningimplementXIGeneralSecretaryseriesimportantspeechespeciallyon"twolearnado"learningeducationofimportantindicatesspirit,accordingtoCentral,andprovincialandmunicipaloninallmembersinthecarriedout"learnConstitutionPartyrules,andSpeechseries,bequalifiedpartymembers"learnthedeploymentrequirementsofeducation,forme"two"educationworkarrangements,educationandguidancedirectlyundertheworksofpartymembersandfurtherstrengtheningtheconvictioninideal,keepingfaithfultothepartyandsetupbreezeupright,play,dare,tospeedupwaterconservancyreformanddevelopmenteffortstoprovideastrongorganizationalguarantee.Justnow,theXXgayannouncedmunicipalwatersystems"two"isFertilizationsystem,unitsofthepartyorganizationinaccordancewiththeimplementationplan,payingcarefulattentiontoimplementation.Thefollowing,accordingtothespiritoftheCentral,provincialandmunicipalpartyCommittee,andconductedmymunicipalwatersystem"two"studyandeducation,Iwishtomakethreepoints.A,anddeepawarenesscarriedout"twolearnado"learningeducationofimportantmeaningpartyof18bigyilai,toXIcomradeforGeneralSecretaryofCentral,aroundfullstrictlyrulepartymadehasseriesmajordeployment,playedhasastrictlyrulepartyofcombinationfist,hascarriedouthaspartyofmasslineeducationpracticeactivities,"threestrictthreereal"topiceducation,forsolutionmemberscadresespeciallyCountyatlevelaboveleadersexistsofhighlightproblem,advancefullstrictlyrulepartyuptohasveryimportantofrole,tubepartyrulepartylostofYuwide,andLostintheloose,soft-lostproblemhasbeengreatlyimproved,rankstheoverallqualityhasbeengreatlyimproved.Butalsoto中铁四局集团有限公司兰新铁路第二双线项目部-9- 兰新铁路第二双线（新疆段）LXTJ4标段重力式挡土墙施工作业指导书8.4支模时要按要求搭高护栏及安全操作台，操作台上设脚手板，不得站在钢管上操作。8.5进入施工现场操作，必须配戴好安全帽及安全带。8.6模板及其支撑在安装过程中，必须有防倾倒的临时固定设施。在2米以上高处作业必须具有满足操作要求的可靠立足点。8.7工作前应先检查使用的工具是否牢固，板手等工具必须用绳链系挂在身上，钉子必须放在工具袋内，以免掉落伤人。工作时要思想集中，防止钉扎脚和空中滑落。8.8遇六级以上的大风时，应暂停室外的高空作业，雪霜雨后应先清扫施工现场，略干不滑时再进行工作。8.9二人抬运模板时要互相配合、协同工作。传递模板、工具应用运输工具或绳子系牢后升降，不得乱抛。8.10组合钢模板装拆时，上下应有人接应。钢模板及配件应随装拆随运送，严禁从高处抛下，高空拆模时，应有专人指挥。并在下面标出工作区，加围栏，暂停人员过往。8.11不得在脚手架上堆放大批模板等材料。8.12支模过程中，如需中途停歇，应将支撑、搭头、柱头板等钉牢。拆模间歇时，应将已活动的模板、牵杆、支撑等运走或妥善堆放，防止因踏空、扶空而附落。8.13拆除模板一般用长撬棒，人不许站在正在拆除的模板上，在拆除楼板的模板时，要注意整块模板掉下，尤其是用定型模板做平台模板时，更要注意，拆除人员要站在门窗洞口外拉支撑，防止模板突然全部掉下伤人。8.14在组合钢模板上架设的电线和使用的电动工具，应用36伏低压电源或采用其它安全措施。8.15装、拆模板时禁止使用小楞木、钢模板作立人板。8.16ConferenceisbyCouncilpartyresearchdecidedheldofonceimportantConference,maintaskisin-depthlearningimplementXIGeneralSecretaryseriesimportantspeechespeciallyon"twolearnado"learningeducationofimportantindicatesspirit,accordingtoCentral,andprovincialandmunicipaloninallmembersinthecarriedout"learnConstitutionPartyrules,andSpeechseries,bequalifiedpartymembers"learnthedeploymentrequirementsofeducation,forme"two"educationworkarrangements,educationandguidancedirectlyundertheworksofpartymembersandfurtherstrengtheningtheconvictioninideal,keepingfaithfultothepartyandsetupbreezeupright,play,dare,tospeedupwaterconservancyreformanddevelopmenteffortstoprovideastrongorganizationalguarantee.Justnow,theXXgayannouncedmunicipalwatersystems"two"isFertilizationsystem,unitsofthepartyorganizationinaccordancewiththeimplementationplan,payingcarefulattentiontoimplementation.Thefollowing,accordingtothespiritoftheCentral,provincialandmunicipalpartyCommittee,andconductedmymunicipalwatersystem"two"studyandeducation,Iwishtomakethreepoints.A,anddeepawarenesscarriedout"twolearnado"learningeducationofimportantmeaningpartyof18bigyilai,toXIcomradeforGeneralSecretaryofCentral,aroundfullstrictlyrulepartymadehasseriesmajordeployment,playedhasastrictlyrulepartyofcombinationfist,hascarriedouthaspartyofmasslineeducationpracticeactivities,"threestrictthreereal"topiceducation,forsolutionmemberscadresespeciallyCountyatlevelaboveleadersexistsofhighlightproblem,advancefullstrictlyrulepartyuptohasveryimportantofrole,tubepartyrulepartylostofYuwide,andLostintheloose,soft-lostproblemhasbeengreatlyimproved,rankstheoverallqualityhasbeengreatlyimproved.Butalsoto中铁四局集团有限公司兰新铁路第二双线项目部-9- 兰新铁路第二双线（新疆段）LXTJ4标段重力式挡土墙施工作业指导书高空作业要搭设脚手架或操作台，上、下要使用梯子，不许站立在墙上工作；不准在梁底模上行走。操作人员严禁穿硬底鞋及有跟鞋作业。8.17装、拆模板时，作业人员要站立在安全地点进行操作，防止上下在同一垂直面工作；操作人员要主动避让吊物，增强自我保护和相互保护的安全意识。8.18拆模必须一次性拆净，不得留有无撑模板。拆下的模板要及时清理，堆放整齐。8.19支撑杆接长使用时，接头不得超过两个，且应采用辅助支柱来保证接头的承载力和稳定性。8.20酒后不准进行施工作业。8.21夜间施工还要加设警示灯，确保行车安全。8.22现场临时用电需有可靠的接地措施，用电操作需由专业电工负责。8.23开关箱必须严格实行“一机一闸一漏电开关”制，严禁用同一个开关直接控制二台及二台以上用电设备(含插座.。开关箱内禁止存放什物，门应加锁及应有防雨、防潮措施。8.24拉闸停电进行电气检修作业时，必须在配电箱门挂上“有人操作，禁止合闸”的标志牌，必要时设专人看守。8.25拆除施工现场线路时，必须先切断电源，严禁留有可能带电的导线。8.26禁止使用不合格的保险装置和霉烂电线。一切移动式用电设备的电源线(电缆.全长不得有驳口，外绝缘层应无机械损伤。8.27各种电气设备应装专用开关和插销，插销上应具备专用的保护接零(接地.触头。严禁将导电触头误接作接地触头使用。8.28临时用电装置的安装维修搬迁移动和拆卸必须由持证的专业电工操作，并且电工操作必须有监护人，其它工种人员不得自己擅自进行电工操作。8.29料斗浇捣混凝土时，指挥扶斗人员与驾驶员应密切配合，当放下料斗时，操作人员应主动避让，应随时注意料斗碰头，并应站立稳当，防止料斗碰人坠落。ConferenceisbyCouncilpartyresearchdecidedheldofonceimportantConference,maintaskisin-depthlearningimplementXIGeneralSecretaryseriesimportantspeechespeciallyon"twolearnado"learningeducationofimportantindicatesspirit,accordingtoCentral,andprovincialandmunicipaloninallmembersinthecarriedout"learnConstitutionPartyrules,andSpeechseries,bequalifiedpartymembers"learnthedeploymentrequirementsofeducation,forme"two"educationworkarrangements,educationandguidancedirectlyundertheworksofpartymembersandfurtherstrengtheningtheconvictioninideal,keepingfaithfultothepartyandsetupbreezeupright,play,dare,tospeedupwaterconservancyreformanddevelopmenteffortstoprovideastrongorganizationalguarantee.Justnow,theXXgayannouncedmunicipalwatersystems"two"isFertilizationsystem,unitsofthepartyorganizationinaccordancewiththeimplementationplan,payingcarefulattentiontoimplementation.Thefollowing,accordingtothespiritoftheCentral,provincialandmunicipalpartyCommittee,andconductedmymunicipalwatersystem"two"studyandeducation,Iwishtomakethreepoints.A,anddeepawarenesscarriedout"twolearnado"learningeducationofimportantmeaningpartyof18bigyilai,toXIcomradeforGeneralSecretaryofCentral,aroundfullstrictlyrulepartymadehasseriesmajordeployment,playedhasastrictlyrulepartyofcombinationfist,hascarriedouthaspartyofmasslineeducationpracticeactivities,"threestrictthreereal"topiceducation,forsolutionmemberscadresespeciallyCountyatlevelaboveleadersexistsofhighlightproblem,advancefullstrictlyrulepartyuptohasveryimportantofrole,tubepartyrulepartylostofYuwide,andLostintheloose,soft-lostproblemhasbeengreatlyimproved,rankstheoverallqualityhasbeengreatlyimproved.Butalsoto中铁四局集团有限公司兰新铁路第二双线项目部-9- 兰新铁路第二双线（新疆段）LXTJ4标段重力式挡土墙施工作业指导书8.30在运料时，前后应保持一定的车距，不准奔走、抢道或超车。8.31到终点卸料时，双手应扶牢车把卸料，严禁双手脱把，防止翻车伤人。8.32使用振动机前应先检查电源电压，输电必须安装漏电开关，保护电源线路是否良好。8.33施工作业段内做好围挡警示，夜间设置警示灯，并在围挡两端及中间昼夜安排防护人员，引导来往行人车辆。8.34路基回填在混凝土强度达到设计强度75%后进行，对既有路基清理应边填筑边清理，确保既有线行车安全。ConferenceisbyCouncilpartyresearchdecidedheldofonceimportantConference,maintaskisin-depthlearningimplementXIGeneralSecretaryseriesimportantspeechespeciallyon"twolearnado"learningeducationofimportantindicatesspirit,accordingtoCentral,andprovincialandmunicipaloninallmembersinthecarriedout"learnConstitutionPartyrules,andSpeechseries,bequalifiedpartymembers"learnthedeploymentrequirementsofeducation,forme"two"educationworkarrangements,educationandguidancedirectlyundertheworksofpartymembersandfurtherstrengtheningtheconvictioninideal,keepingfaithfultothepartyandsetupbreezeupright,play,dare,tospeedupwaterconservancyreformanddevelopmenteffortstoprovideastrongorganizationalguarantee.Justnow,theXXgayannouncedmunicipalwatersystems"two"isFertilizationsystem,unitsofthepartyorganizationinaccordancewiththeimplementationplan,payingcarefulattentiontoimplementation.Thefollowing,accordingtothespiritoftheCentral,provincialandmunicipalpartyCommittee,andconductedmymunicipalwatersystem"two"studyandeducation,Iwishtomakethreepoints.A,anddeepawarenesscarriedout"twolearnado"learningeducationofimportantmeaningpartyof18bigyilai,toXIcomradeforGeneralSecretaryofCentral,aroundfullstrictlyrulepartymadehasseriesmajordeployment,playedhasastrictlyrulepartyofcombinationfist,hascarriedouthaspartyofmasslineeducationpracticeactivities,"threestrictthreereal"topiceducation,forsolutionmemberscadresespeciallyCountyatlevelaboveleadersexistsofhighlightproblem,advancefullstrictlyrulepartyuptohasveryimportantofrole,tubepartyrulepartylostofYuwide,andLostintheloose,soft-lostproblemhasbeengreatlyimproved,rankstheoverallqualityhasbeengreatlyimproved.Butalsoto中铁四局集团有限公司兰新铁路第二双线项目部-9-'