室外电缆沟施工方案、浙江某国家粮库及其附属工程施工组织设计.docx

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1、电缆沟开挖施工方案WorkMethodofCableTrenchExcavation编制：Compiledby:审核：Reviewedby:2009年10月21日October21,2009目录Content一. 概况OVERVIEW31.1 工程概况PROJECTOVERVIEW31.2 施工范围Scopeofwork3二. 编制依据CoMPILATIoNBASIS4三. 施工工艺流程CoNSTRUCTloNPROCESS:4四,前期准备PREPARATIONS43.1 技术准备TEeHNlCALPREPARAnoN43.2 材料准备MATERIALPREPARATloN53.3 主要机具准

2、备MAINEquipmentspreparation53.4 作业环境准备OPERATINGENVlRoNMENTPREPARATIONS5五 .电缆沟施工CABLETRENCHCONSTRUCTION55.1 电缆沟测量、定位Cabletrenchmeasurementandpositioning.55.2 电缆沟开挖CABLETRENCHEXCAVATION6六 .质量控制QUALrrYCoNTRoL76.1 电缆沟外形尺寸允许偏差表ALLOWABLEDEVIATEDEXTERNALDimensionsofcabletrenchtable76.2 应注意的质量问题QUALrrYlSSUES

3、8七 .成品保护FINISHEDPROTECTION8八 .施工记录CONSTRUCTIONOFRECORD8九 .安全生产、文明施工要求和措施Safetyandcivilizedconstructionrequestsandmeasures8附厂区电缆沟图：ATTACHED:CABLETRENCHDRAWING8概况Overview1.1 工程概况ProjectOverview项目名称：本工程涉及三个变电站，分别是现有的22035kVA472变电站、现有的35/1OkVB3O1S变电站以及新建的35/1OkVC581变电站，工作内容为三个变电站之间和从三个变电站接至MV用户的电力电缆、控制电

4、缆、接地电缆敷设所需电缆沟的开挖工程。Theprojectinvolvesthreesubstations,namelytheexisting22035kVA472substation,theexisting3510kVB301Sthe3510kVC581substationandanewsubstation.Thisisthepower,controlandgroundingcabletrenchexcavationprojectamongthreesubstationsandforMVusersconnectedtothethreesubstations.1.2 施工范围ScopeofWo

5、rk1）由A472变电站引出3路35kV出线。其中：一路引至B301S建筑（35/1OkV变电站）原1#主变，原1#主变电缆将抽出，与新增4#主变连接；另两路引至35/1OkVC581变电站1#主变和2#主变。回路采用FS-YJY-2635kV-l*300mm2单芯电缆，直埋敷设。去C581的两路35kV线路，敷设时沿不同路径，以避免两回线路同时受损。Pullthree35VoutgoingsfromA472substation.Ofwhich:ThefirstoutgoingisledtoB301SBuilding（3510kVsubstation）theoriginalone#maintr

6、ansformer,pulltheoriginalone#maintransformercableout,andconnecttotheadding4#maintransformer;theothertwooutgoingsareledto35/1OkVC581#1andsubstation2#maintransformer.UseFS-YJY-2635kV-l*300mm2single-corecablesforLoopandburiedpulling.Two35kVlinestoC581arelaidalongdifferentpathstoavoiddamageofthetwoloops

7、.2）由B301S变电站引出7路IOkV出线。全部引至B399中心制冷站。回路采用IOkV截面为95mm2的三芯铠装电缆，由B301S南面现有的电缆井引出直埋至装置。Pull710kVoutgoingsfromB301SsubstationtoB399centralrefrigerationstation.LoopusesIOkVthree-corearmoredcablewithcross-section95mm2andpulloutfromtheexistingcablewellinthesouthofB301Sthenburiedlaytothedevice.3）由C581引出10路Io

8、kV线路，分别为A507的四台变压器，B551的两台变压器，B553TDA装置氢气压缩机2台，C521盐酸装置氯气压缩机1台，盐酸压缩机1台提供电源。其中，变压器回路采用IOkV截面为185mm2的三芯铠装电缆，马达回路采用IOkV截面为95mm2的三芯铠装电缆。以上电缆线路均沿规划路径埋地敷设。IoIOkVlinesledfromC581areusedtosupplypowertoA507,sfourtransformers,B551twotransformers,B553TDA2setsofhydrogencompressorunit,C521hydrochloricacidchlorin

9、egascompressorunit,andhydrochloricacidcompressorunitrespectively.Amongthem,transformercircuitusesX3-corearmoredcablewithIOkVcross-section185mm2,motorcircuitusesthree-corearmoredcablewithIOkVcross-section95mm2.Allcablelineswillbelaidundergroundalongtheplanningpath.4）接地电缆回路：Groundcableloop:从A472敷设一根95

10、mm2裸铜线去C581,同时从C581敷设四根95mm2裸铜线，分别引至B551、A507、B553和C521,作等电位联结。以上电缆线路均沿规划路径埋地敷设。Laya95mm2barecopperwiretoC581fromA472.MeanwhilelayfourbarecopperwirestoB551,A507,B553andC521forequipotentialbonding.Allcablelineswillbelaidundergroundalongtheplanningpath.5）本工程电缆沟走向如下：Thecabletrenchdirectionsareasfollows

11、:电缆沟南线为A472至C581,全长约850米，根据K-K断面图：开挖深度为1米，沟槽底宽0.6米，沟槽面宽约L1米。CabletrenchsouthlineisfromA472toC581about850meterslong.AccordingtoKKsectionaldrawing,excavationdepthisof1meterwithtrenchbottomwidth0.6mandfacewidth1.1m.电缆沟北线为A472至C581和B301,其中共线约220米，根据A-A断面图有：开挖深度为1米，沟槽底宽1米，沟槽面宽约1.5米；Cabletrenchnorthlineis

12、fromA472toC581andB301andthecollinearisabout220meters.AccordingtoAAsectionaldrawing,excavationdepthis1metertrenchwithtrenchbottomwidth1mandfacewidthl.5m.至C581支线约430米，根据E-E断面图有：开挖深度为1米，沟槽底宽0.6米，沟槽面宽约1.1米；至B301支线约300米，根据B-B断面图有：开挖深度为1米，沟槽底宽0.6米，沟槽面宽约L1米。Thesub-linetheC581isabout430meters.AccordingtoEEs

13、ectionaldrawingexcavationdepthisImetertrenchwithtrenchbottomwidth1mandfacewidth1.1m.Thesub-linetoB301theisabout300meters.AccordingtoBBsectionaldrawing,excavationdepthis1metertrenchwithtrenchbottomwidth1mandfacewidthl.lm.二.编制依据CompilationBasis1）根据电气包（中压部分）招标文件及招标图纸编制而成。AccordingtoElectricpackage（MV）t

14、hetenderandtenderdrawings.2）在充分研究工程的客观情况和施工特点，结合我公司类似工程施工经验的基础上编制的。Basedonfullstudyonconstructioncharacteristicsandobjectivesituationandcombinedwithsimilarconstructionexperience.3）在本方案编制过程中，严格执行国家现行建筑和安装工程施工及验收规范、规程、标准、设计规范。具体如下：InthisCcmpilationprocess,strictlyimplementcurrentnationalconstructionan

15、dinstallationconstruction,acceptancenorms,procedures,standards,anddesignspecifications.Asfollows:电气装置安装工程电缆线路施工及验收规范GB50168-2006nElectricalinstallationcableconstructionandacceptancestandardsGB50168-200611电气装置安装工程接地装置施工及验收规范GB50169-2006nElectricalinstallationearthingConstructionandacceptancestandardG

16、B50169-200611建筑电气工程施工质量验收规范GB503032002nBuildingElectricalConstructionQualityAcceptanceGB50303-200211三.施工工艺流程：ConstructionProcess:前期准备一电缆沟测量、定位一确定开挖顺序一沿灰线切出槽边轮廓线一分层开挖一修整槽边f清底preparationcabletrenchmeasurementsexcavationordercuttingcontourlinealongthecalcareousnessstratifiedexcavationfinishingcabletrenchedgeclearup四.前期准备PreParatiOlIS4.1 技术