HGU管溝施工方案

目錄TOC\o"1-2"\h\z\u1、 編制依據(jù) 11、 CompilationBasis 12、 工程概況 12、 General 13、 施工準(zhǔn)備 23.ConstructionPreparation 24、 施工計劃部署 34.ConstructionPlanArrangement 35、 施工縫劃分 95.DivisionofConstructionJoints 96、 墊層及替代砼的澆筑 106.PlacingofBeddingConcreteandConstituteConcrete 107、 腳手架工程 107、ScaffoldWork 108、模板工程 148.1模板情況介紹 148.1IntroductionofFormwork 148.2廊道模板制作要求 148.2RequirementforPipewayFormworkManufacturing 148.3模板安裝 148.4模板拆除 158.4StrippingofFormwork 169.鋼筋工程 169.1鋼筋材質(zhì)及制作 169.1ReinforcementMaterialandFabrication 169.2鋼筋保護層 179.2CoverofReinforcement 179.3鋼筋連接 179.3ReinforcementConnection 179.4鋼筋的防污染保護 189.4ContaminationProofofReinforcement 1810、混凝土工程 1811、質(zhì)量保證 2412、安全文明施工措施 2513、計算書 26HGU管溝施工方案ConstructionMethodsStatementOnHGO1、編制依據(jù)1.CompilationBasis臺山核電站一期常規(guī)島土建工程施工合同CivilWorkContractofTaishanNuclearPowerStationConventionalIsland(Phase1);歐標(biāo)技術(shù)規(guī)格書（B版）EuropeanStandardTechnicalSpecification(EditionB)HGU管溝施工圖紙ConstructionDrawingsofHGUPipeway臺山核電站一期常規(guī)島土建工程現(xiàn)場施工情況CivilWorkOn-siteConstructionConditionofTaishanNuclearPowerStationConventionalIsland(Phase1)工程概況2.General臺山核電站一期工程HGU管溝是連接循環(huán)水虹吸井（HCA）與重要廠用水泵房（HPA/C）專設(shè)的重要冷卻水管溝。采用核島反應(yīng)堆坐標(biāo)系（坐標(biāo)以1980西安坐標(biāo)系為準(zhǔn)），反應(yīng)堆廠房標(biāo)高±0.00相對于8.7m(國家85高程系)，所有標(biāo)高都以反應(yīng)堆廠房的相對標(biāo)高為準(zhǔn)；HGU管溝外截面大部分為3.5m×3.5m，內(nèi)孔大部分截面為2.5m×2.5m的方孔，側(cè)壁及底板、頂板均為500mm厚的現(xiàn)澆鋼筋混凝土結(jié)構(gòu)；結(jié)構(gòu)需進行找坡，找坡坡度分別為0.3%、0.34%與0.38%。HGU管溝替代砼及墊層采用C25砼，主體結(jié)構(gòu)采用歐標(biāo)C35/45砼；管溝共計10段(060～069段)InTaishanNuclearPowerStationproject(Phase1),HGUisessentialcoolingwaterpipewaywhichisdedicatedtolinktherecycledwatersiphonwell(HCA)andessentialservicepumpstation(HPA/C).CoordinatesystemofNuclearIslandreactorisapplied(XIANCoordinateSystem1980).Level±0.00ofreactorbuildingcorrespondsto8.7mofNationalElevationDatum1985.Alllevelsrelatetothereferencelevelofreactorbuilding.TheoutsidesectionofHGUislargelysquareholeof3.5m×3.5mandinsidesectionislargelysquareholeof2.5m×2.5m.Thesidewall,baseslabandtopslabofthepipewayarereinforcementconcretestructureof500mmthickwhichshallbecastinsitu.Theslopshallbemadeinstructureandtheslopevariesfrom0.3%,0.34%to0.38%.TheC25concreteshallbeappliedtotheHGUPipewayconstituteconcreteandbeddingconcrete,whileENC35/45concreteshallbeappliedtothemainstructure.施工準(zhǔn)備3.ConstructionPreparation3.1人員安排：3.1PersonnelPreparation隊長：羅澤軍；全面負責(zé)HGU管溝的施工管理與現(xiàn)場協(xié)調(diào)工作。TeamLeader:LuoZejun,responsibleforcomprehensiveconstructionmanagementandsitecoordinationofHGUpipeway.鋼筋工長：彭廣理；負責(zé)HGU管溝鋼筋的綁扎與驗收工作。ReinforcementForeman:PengGuangli,responsibleforthereinforcementfixingandacceptanceofitinHGUpipeway.木工工長：周貴偉；負責(zé)HGU管溝模板的支護與驗收工作。CarpentryForeman:ZhouGuiwei,responsibleforformworkinstallationandacceptanceofitinHGUpipeway.混凝土工長：黃建根；負責(zé)HGU管溝模板的支護與驗收工作。ConcreteForeman:HuangJian’gen,responsibleformworkinstallationandacceptanceofitinHGUpipeway.技術(shù)員：劉志強；負責(zé)HGU管溝施工過程中技術(shù)問題及技術(shù)交底工作。Technician:LiuZhiqiang,responsibletoresolvetechnicaldifficultiesandtechnicalannotationduringHGUpipewayconstruction.QC1:張嚴光；負責(zé)HGU管溝施工過程中的質(zhì)量監(jiān)督、檢查工作。QC1:ZhangYan’guang,responsibleforqualitysupervisionandinspectionduringHGUpipewayconstruction.QC2:劉煒；負責(zé)HGU管溝施工過程中的W、H點進行復(fù)檢，對其它工序進行抽檢驗證等工作。QC2:LiuWei,responsibleforrecheckofpointWandHandsamplinginspectionofotherprocess.安全員：李永全；負責(zé)HGU管溝施工過程中安全監(jiān)督、檢查和文明施工管理工作。SafetyOfficer:LiYongquan,responsibleforsafetysupervision&inspectionandcivilizedconstructionmanagement.測量員：2名；負責(zé)HGU管溝施工過程中測量放線工作。2SurveyCrew:responsibleforsetting-outduringHGUpipewayconstruction.資料員：負責(zé)HGU管溝施工過程中圖紙和文件的接收，編制驗收資料（國標(biāo)和ETF）等工作。DocumentController:responsibleforreceivingdrawingsanddocumentsandcompilingacceptancedocuments(nationalstandardandETFdocument)duringHGUpipewayconstruction.在結(jié)構(gòu)施工高峰期，計劃進場工人：木工15人，鋼筋工20人，混凝土工20人、焊工2人、架子工15人，特殊工種，必須經(jīng)過培訓(xùn)，有上崗證，持證上崗。Durdingthepeakperiodofstructureconstruction,itisplannedtomobilize:15woodworkers;20reinforcementworkers,20concreteworkers,2welders,15scaffolders.Workersofspecialpostsshallattendtrainingandgetworklicense.3.2機具準(zhǔn)備3.2EquipmentandMachineryPreparation結(jié)構(gòu)施工高峰期混凝土澆筑設(shè)備：Concreteplacingequipmentsduringpeakperiodofstructureconstruction:序號No.設(shè)備名稱EquipmentName型號Model工作能力Capability備注Note1混凝土攪拌運輸車ConcreteMixingTruckJGC5292GJB85臺5Sets2混凝土汽車泵ConcreteAutoPump140-100m3/8.5-12Mpa/44.5m120m3/1臺1Set3混凝土振動棒ConcreteVibratorZN505520根20Sets注:砼澆筑時主體隊需儲備雨布，防止雨水對砼質(zhì)量的影響；夜間施工需增加照明燈具。Note:Duringconcreteplacing,theMainStructureTeamshallpreparerainclothtopreventtheconcretequalityfrombeingaffectedbytherain.Lightingequipmentshallbepreparedduringnightconstruction.施工計劃部署4.ConstructionPlanArrangementHGU管溝計劃從2009年11月8日開工，到2010年2月7日完工（除60、62、63、69段的上段部分外），總工期92天，下表為具體部署：TheconstructionofHGUpipewayisplannedtostartonNovember8thof2009andtobefinishedonFebruary7thof2010(theuppersectionof60th,62nd,63rdand69thSectionarenotcompletedduringthisperiod).Theconstructionlastsfor92daysandfollowingisdetailedschedule:任務(wù)名稱ProjectName工期ConstructionPeriod開始時間StartTime完成時間CompletionTimeHGU專設(shè)重要冷卻水廊道EssentialCoolingWaterPipeway(HGU)92d2009-11-88:002010-2-717:00HG-66段HG-66Section65d2009-11-88:002010-1-1117:00下段LowerSection50d2009-11-88:002009-12-2717:00替代、墊層施工ConstructionofConstituteandBeddingConcrete4d2009-11-88:002009-11-1117:00鋼筋綁扎（包括止水鋼板安裝）ReinforcementFixing(includinginstallationofwaterstopsteelplate)5d2009-12-188:002009-12-2217:00模板支設(shè)FormworkInstallation3d2009-12-238:002009-12-2517:00隱蔽驗收ConcealedWorkAcceptance1d2009-12-268:002009-12-2617:00砼澆筑ConcretePlacing1d2009-12-278:002009-12-2717:00上段UpperSection13d2009-12-308:002010-1-1117:00砼鑿毛ConcreteRoughening1d2009-12-308:002009-12-3017:00墻體鋼筋綁扎WallReinforcementFixing3d2009-12-318:002010-1-217:00墻體模板支設(shè)WallFormworkInstallation3d2010-1-38:002010-1-517:00內(nèi)支撐架搭設(shè)InnerBracingFrameInstallation3d2010-1-38:002010-1-517:00頂模鋪設(shè)TopFormworkInstallation2d2010-1-68:002010-1-717:00頂板鋼筋綁扎TopSlabReinforcementFixing2d2010-1-88:002010-1-917:00隱蔽驗收ConcealedWorkAcceptance1d2010-1-108:002010-1-1017:00砼澆筑ConcretePlacing1d2010-1-118:002010-1-1117:00HG-64段HG-64Section65d2009-11-88:002010-1-1117:00下段LowerSection50d2009-11-88:002009-12-2717:00替代、墊層施工ConstructionofConstituteandBeddingConcrete4d2009-11-88:002009-11-1117:00鋼筋綁扎（包括止水鋼板安裝）ReinforcementFixing(includinginstallationofwaterstopsteelplate)5d2009-12-188:002009-12-2217:00模板支設(shè)FormworkInstallation3d2009-12-238:002009-12-2517:00隱蔽驗收ConcealedWorkAcceptance1d2009-12-268:002009-12-2617:00砼澆筑ConcretePlacing1d2009-12-278:002009-12-2717:00上段UpperSection13d2009-12-308:002010-1-1117:00砼鑿毛ConcreteRoughening1d2009-12-308:002009-12-3017:00墻體鋼筋綁扎WallReinforcementFixing3d2009-12-318:002010-1-217:00墻體模板支設(shè)WallFormworkInstallation3d2010-1-38:002010-1-517:00內(nèi)支撐架搭設(shè)InnerBracingFrameInstallation3d2010-1-38:002010-1-517:00頂模鋪設(shè)TopFormworkInstallation2d2010-1-68:002010-1-717:00頂板鋼筋綁扎TopSlabReinforcementFixing2d2010-1-88:002010-1-917:00隱蔽驗收ConcealedWorkAcceptance1d2010-1-108:002010-1-1017:00砼澆筑ConcretePlacing1d2010-1-118:002010-1-1117:00HG-65段HG-65Section52d2009-11-88:002009-12-2917:00下段LowerSection39d2009-11-88:002009-12-1617:00替代、墊層施工ConstructionofConstituteandBeddingConcrete4d2009-11-88:002009-11-1117:00鋼筋綁扎（包括止水鋼板安裝）ReinforcementFixing(includinginstallationofwaterstopsteelplate)5d2009-12-78:002009-12-1117:00模板支設(shè)FormworkInstallation3d2009-12-128:002009-12-1417:00隱蔽驗收ConcealedWorkAcceptance1d2009-12-158:002009-12-1517:00砼澆筑ConcretePlacing1d2009-12-168:002009-12-1617:00上段UpperSection13d2009-12-178:002009-12-2917:00砼鑿毛ConcreteRoughening1d2009-12-178:002009-12-1717:00墻體鋼筋綁扎WallReinforcementFixing3d2009-12-188:002009-12-2017:00墻體模板支設(shè)WallFormworkInstallation3d2009-12-218:002009-12-2317:00內(nèi)支撐架搭設(shè)InnerBracingFrameInstallation3d2009-12-218:002009-12-2317:00頂模鋪設(shè)TopFormworkInstallation2d2009-12-248:002009-12-2517:00頂板鋼筋綁扎TopSlabReinforcementFixing2d2009-12-268:002009-12-2717:00隱蔽驗收ConcealedWorkAcceptance1d2009-12-288:002009-12-2817:00砼澆筑ConcretePlacing1d2009-12-298:002009-12-2917:00HG-67段HG-67Section30d2009-11-308:002009-12-2917:00下段LowerSection17d2009-11-308:002009-12-1617:00替代、墊層施工ConstructionofConstituteandBeddingConcrete3d2009-11-308:002009-12-217:00鋼筋綁扎（包括止水鋼板安裝）ReinforcementFixing(includinginstallationofwaterstopsteelplate)5d2009-12-78:002009-12-1117:00模板支設(shè)FormworkInstallation3d2009-12-128:002009-12-1417:00隱蔽驗收ConcealedWorkAcceptance1d2009-12-158:002009-12-1517:00砼澆筑ConcretePlacing1d2009-12-168:002009-12-1617:00上段UpperSection13d2009-12-178:002009-12-2917:00砼鑿毛ConcreteRoughening1d2009-12-178:002009-12-1717:00墻體鋼筋綁扎WallReinforcementFixing3d2009-12-188:002009-12-2017:00墻體模板支設(shè)WallFormworkInstallation3d2009-12-218:002009-12-2317:00內(nèi)支撐架搭設(shè)InnerBracingFrameInstallation3d2009-12-218:002009-12-2317:00頂模鋪設(shè)TopFormworkInstallation2d2009-12-248:002009-12-2517:00頂板鋼筋綁扎TopSlabReinforcementFixing2d2009-12-268:002009-12-2717:00隱蔽驗收ConcealedWorkAcceptance1d2009-12-288:002009-12-2817:00砼澆筑ConcretePlacing1d2009-12-298:002009-12-2917:00HG-68段HG-68Section51d2009-11-308:002010-1-1917:00下段LowerSection38d2009-11-308:002010-1-617:00替代、墊層施工ConstructionofConstituteandBeddingConcrete3d2009-11-308:002009-12-217:00鋼筋綁扎（包括止水鋼板安裝）ReinforcementFixing(includinginstallationofwaterstopsteelplate)5d2009-12-288:002010-1-117:00模板支設(shè)FormworkInstallation3d2010-2010-1-417:00隱蔽驗收ConcealedWorkAcceptance1d2010-1-58:002010-1-517:00砼澆筑ConcretePlacing1d2010-1-68:002010-1-617:00上段UpperSection13d2010-1-78:002010-1-1917:00砼鑿毛ConcreteRoughening1d2010-1-78:002010-1-717:00墻體鋼筋綁扎WallReinforcementFixing3d2010-1-88:002010-1-1017:00墻體模板支設(shè)WallFormworkInstallation3d2010-1-118:002010-1-1317:00內(nèi)支撐架搭設(shè)InnerBracingFrameInstallation3d2010-1-118:002010-1-1317:00頂模鋪設(shè)TopFormworkInstallation2d2010-1-148:002010-1-1517:00頂板鋼筋綁扎TopSlabReinforcementFixing2d2010-1-168:002010-1-1717:00隱蔽驗收ConcealedWorkAcceptance1d2010-1-188:002010-1-1817:00砼澆筑ConcretePlacing1d2010-1-198:002010-1-1917:00HG-61段HG-61Section59d2009-11-228:002010-1-1917:00下段LowerSection46d2009-11-228:002010-1-617:00替代、墊層施工ConstructionofConstituteandBeddingConcrete3d2009-11-228:002009-11-2417:00鋼筋綁扎（包括止水鋼板安裝）ReinforcementFixing(includinginstallationofwaterstopsteelplate)5d2009-12-288:002010-1-117:00模板支設(shè)FormworkInstallation3d2010-1-28:002010-1-417:00隱蔽驗收ConcealedWorkAcceptance1d2010-1-58:002010-1-517:00砼澆筑ConcretePlacing1d2010-1-68:002010-1-617:00上段UpperSection13d2010-1-78:2010-1-1917:00砼鑿毛ConcreteRoughening1d2010-1-78:002010-1-717:00墻體鋼筋綁扎WallReinforcementFixing3d2010-1-88:002010-1-1017:00墻體模板支設(shè)WallFormworkInstallation3d2010-1-118:002010-1-1317:00內(nèi)支撐架搭設(shè)InnerBracingFrameInstallation3d2010-1-118:002010-1-1317:00頂模鋪設(shè)TopFormworkInstallation2d2010-1-148:002010-1-1517:00頂板鋼筋綁扎TopSlabReinforcementFixing2d2010-1-168:002010-1-1717:00隱蔽驗收ConcealedWorkAcceptance1d2010-1-188:002010-1-1817:00砼澆筑ConcretePlacing1d2010-1-198:002010-1-1917:00HG-62、HG-60段HG-62andHG-60Section25d2010-1-38:002010-1-2717:00下段LowerSection12d2010-1-38:002010-1-1417:00替代、墊層施工ConstructionofConstituteandBeddingConcrete4d2010-1-38:002010-1-617:00鋼筋綁扎（包括止水鋼板安裝）ReinforcementFixing(includinginstallationofwaterstopsteelplate)3d2010-1-78:002010-1-917:00模板支設(shè)FormworkInstallation3d2010-1-108:002010-1-1217:00隱蔽驗收ConcealedWorkAcceptance1d2010-1-138:002010-1-1317:00砼澆筑ConcretePlacing1d2010-1-148:002010-1-1417:00HG-69、HG-63段HG-69andHG-63Section28d2010-1-118:002010-2-717:00下段LowerSection11d2010-1-118:002010-1-2117:00替代、墊層施工ConstructionofConstituteandBeddingConcrete4d2010-1-118:002010-1-1417:00鋼筋綁扎（包括止水鋼板安裝）ReinforcementFixing(includinginstallationofwaterstopsteelplate)3d2010-1-158:002010-1-1717:00模板支設(shè)FormworkInstallation2d2010-1-188:002010-1-1917:00隱蔽驗收ConcealedWorkAcceptance1d2010-1-208:002010-1-2017:00砼澆筑ConcretePlacing1d2010-1-218:002010-1-2117:00施工縫劃分5.DivisionofConstructionJoints按照施工圖紙，HGU管溝驗槽后應(yīng)立即澆筑墊層，逐段施工。主體隊需按照工程部編制的進度計劃完成每個控制點的施工。每段在底板頂面以上500mmAccordingtotheconstructiondrawing,thebeddingconcreteshallbeplacedbysectionimmediatelyaftertheinspectionofHGUfoundationsubsoil.Themainstructureteamshallfinishtheconstructionofeverycontrol-pointaccordingtotheschedulecompiledbytheengineeringdepartment.Ahorizontalconstructionjointshallbesetatthepositionwhichis500mmupperthetopbaseslabfaceandtheconcreteofeverysectionshallbeplacedfortwotimes(theupperpartandthelowerpart).每段施工工序如下：Followingisconstructionprocessofeverysection:清基-→測量放線--→墊層施工--→搭設(shè)外架--→鋼筋綁扎、安裝止水膠帶、止水鋼板--→支設(shè)第一次砼模板--→澆筑第一次砼--→砼養(yǎng)護--→鋼筋綁扎、安裝止水膠帶、預(yù)埋管--→搭設(shè)內(nèi)模板支撐架--→支設(shè)第二次砼模板--→澆筑第二次砼--→砼養(yǎng)護--→土方回填Cleanoffoundation→setting-out→constructionofbeddingconcrete→installationofexternalscaffold→reinforcementfixing,installationofrubberandsteelplatewaterstop→installationoffirststageconcreteformwork→placingoffirststageconcrete→concretecuring→reinforcementfixing,installationofrubberwaterstopandembeddingofpipes→installationofinternalformworkbracingframe→installationofsecondstageconcreteformwork→placingofsecondstageconcrete→concretecuring→backfilling墊層及替代砼的澆筑6.PlacingofBeddingConcreteandConstituteConcrete6.1管溝墊層混凝土可根據(jù)現(xiàn)場具體情況分段澆筑，測量隊?wèi)?yīng)依據(jù)設(shè)計圖紙每段找坡要求放線，管溝結(jié)構(gòu)砼不再找坡。6.1Thebeddingconcreteofpipewayshallbeplacedbysectionaccordingtothesitecondition.Thesurveyteamshallbesettingoutaccordingtotherequirementofmaking-slopinthedesigndrawingandthere’snoneedtomakeslopeinthepipewaystructuralconcrete.6.2管溝墊層混凝土采用C25砼，對于超挖部位需采用替代混凝土澆筑，替代混凝土較厚的部位需分層澆筑，分層厚度為40cm。6.2TheC25concreteshallbeappliedtothepipewaybeddingconcrete.Thepartwhichisover-excavatedshallplacedwithconstituteconcrete.Iftheconstituteconcreteisthick,itshallbeplacedlayerbylayerandeachlayeris40cminthickness.6.3墊層及替代混凝土根據(jù)現(xiàn)場情況可采用泵車或地泵由一端向另一端逐漸推進澆筑。6.3Accordingtothesitecondition,thebeddingandconstituteconcreteshallbeplacedgraduallybypumptruckorfloortypepumpfromoneendtoanother.6.4混凝土振搗參見《砼振搗》工作程序。6.4RefertoWorkProcedureofConcreteVibrationforvibrationmethod.6.5墊層及替代混凝土澆筑后應(yīng)進行澆水養(yǎng)護。6.5Afterplacing,thebeddingconcreteandconstituteconcreteshallbesprayedwithwaterforcuring.腳手架工程7、ScaffoldWork7.1腳手架的搭設(shè)7.1InstallationofScaffold7.1.1HGU管溝外雙排架采用扣件式鋼管腳手架，48×3.5鋼管，立桿橫距0.9m，縱距1.5m，掃地桿距根部為300mm,其它步距為1800mm，操作層平鋪4塊200寬木跳板，內(nèi)立桿離廊道邊距離7.1.1Outsidethepipeway,thedouble-rowscaffoldiscoupler-styleandmadeofF48x3.5steeltubes.Thetransversalspacingofverticalpolesis0.9m,thelongitudinalspacingis1.5m.distancebetweenbottompoleandfloorshallbe300mmandspacingofotherhorizontalpolesshallbe1800mm.Theworkingplatformshallbecoveredwith4woodenputlogswhichis200inwidth.Thedistancebetweeninternalverticalpoleandtrenchedgeshallbe400mm.7.1.2HGU管溝是分段施工，每段廊道施工時在端部位置搭設(shè)施工通道，用于施工人員及小型機具、材料的運送。7.1.2SincetheHGUpipewayisconstructedsectionbysection,constructionpassageshallbesetatthetopforconstructioncrew,smallequipment&machineryandtransportationofmaterialsduringtheconstructionofeachsection.7.1.3根據(jù)側(cè)壁高度，外架在頂端和其他相應(yīng)位置應(yīng)挑出水平桿用于固定側(cè)壁豎筋。7.1.3Accordingtotheheightofthesidewall,horizontalpolesofexternalscaffoldshallbeusedtofixthesidewallverticalrebarsatthetopandothercorrespondingpositions.7.1.4立桿的接長均采用對接扣件，立桿的對接扣件應(yīng)交錯布置，兩根相鄰立桿的接頭不應(yīng)設(shè)置在同步內(nèi)。7.1.4Couplersshallbeappliedtoconnectuprightpipes.Couplerslayoutofdifferentverticalpolesshallbestaggered.Thecouplersoftwoneighboringuprightpolesshallnotbearrangedinthesamehorizentalspan.7.1.5同步內(nèi)隔一根立桿的兩個相隔接頭在高度方向錯開的距不宜小于500mm，各接頭中心至主節(jié)點的距離不宜大于步距的1/3，嚴禁采用搭接。7.1.5Thedistancebetweenthetwoapartedcouplersoftheverticalpoleandthenext2neighboringpolesshallbelongerthan500mm.Thedistancebetweenthecenterofeachjointandnearestmajorjointshallnotbelongerthan1/3ofthedrawingpace.Overlapping7.1.6腳手架搭設(shè)規(guī)范規(guī)定，高度在24米以下的腳手架，必須在外立面的兩端各設(shè)置一道剪刀撐，并應(yīng)由底部至頂端連續(xù)設(shè)置，兩組間隔距離不得大于15米，每道剪刀撐寬度不應(yīng)小于4跨，斜桿與地面的傾角宜在45°~60°之間。7.1.6Accordingtothescaffoldinstallationregulation,forthescaffoldwhichislowerthan24m,astruttingshallbesetatbothendsofthefa?aderespectively.Thestruttingshallbesetcontinuouslyfrombottomtotopandthedistancebetweeneachgrouppfstruttingsshallnotbelongerthan15m.Thewidthofeachstruttingshallnotbelessthan4spans.Theanglebetweenobliquepoleandthefloorshallbetween45°to60°.7.1.7剪刀撐的接長宜采用搭接，搭接長度不應(yīng)小于1m，應(yīng)采用不少于2個旋轉(zhuǎn)扣件固定，端部扣件蓋板的邊緣至桿端不應(yīng)小于100mm。7.1.7Overlapconnectionshallbeappliedintheextensionofstruttingandtheoverlaplengthshallbelongerthanorequalto1m.Atleasttworotatingcouplersshallbeapllied.Thedistancebetweencoverofthetoppestcouplertothetopofofthepoleshallnotbeshorterthan100mm7.1.8腳手架搭設(shè)規(guī)范規(guī)定，當(dāng)架高≤20m時，不小于40m2一個連墻點，且連墻點的豎向間距應(yīng)≤6m。7.1.8Accordingtothescaffoldinstallationregulation,whenthescaffoldisnothigherthan20m,atleastoneconnectionpointtothewallshallbearrangedevery40m2andthespacingbetweentheverticalpointstothewallshallnotbelongerthan6m.7.2腳手架的使用7.2UtilizationofScaffold.1Thescaffoldonlyshallbe7.2.2作業(yè)人員在架上的最大作業(yè)高度應(yīng)以可進行正常操作為度，禁止在架板7.2.2operation.Itisforbiddentoputriserblockorsinglescaffoldboardonthewoodenputlogtoincreaseoperationheight.7.2.3在作業(yè)中，禁止隨意拆除腳手架的基本構(gòu)架桿件、整體性桿件、連接緊固件和連墻件。7.2.3Itisforbiddentoremoveverticalpoles,horizontalpoles,thewallatrandom.Ifitisnecessarytoremovethosepolestemporarily,itshallbepermittedbypeopleinchargeandcorrespondingremedialmeasuresshallbetaken.Afterrelevantoperation,itshallberestored..4Workersoperatingonthescaffoldshallwellasotherpeopletopreventcollisionandfallingobject.Itisforbiddentoplayorrestonthescaffold..5Workersshallgettothescaffoldthroughsafe-guardedpassages.I.6Duringtheconstructionprocess,itshallbeavoidedtodamageorcontaminatethesteeltubesandcouplers.Ifthere’7.3腳手架的拆除7.3RemovalofScaffold..2Thescaffoldshallberemovedlayerbylayer.personandaguardrailorcautionnoticeshallsettopreventirrelevantpersonfromentering.Thescaffoldshallberemovedfromtoptobottom.Therail,scaffoldboard,struttinganddiagonalbracingshallberemovedfirstlyandthencomestotheputlog,legerandverticalpole.Theremovalshallbecarriedoutstepbystepandup-downconcurrentoperationisforbidden..3thelasttwocouplers.Whileremovingtheleger,diagonalbracingandstrutting,theworkersshallfirstlyloosenthemiddlecouplerandthenholdthemiddlepartofthescaffoldtoloosenthecouplersatbothends.7.3.4兩側(cè)架子之間的水平連桿應(yīng)隨拆除進度逐層拆除。嚴禁先將水平拉桿7.3.4Thehorizontaltiesbetweenthesidescaffoldsshallberemovedwiththeproscaffoldremoval.Theremovalofhorizontaltiesshallnotbecarriedoutbeforethatofthescaffold.Theheightdifferenceofsubsectionalremovalshallnotbiggerthan2spans..5Threlevantworkersshallbenotifiedtopreventthemfromfalling...7Theremovedaccessories,suchassteelpipesandscaffoldboards,shallnotbethrownawaybutbestackedrespectively.T8、模板工程8.FormworkWork8.1模板情況介紹8.1IntroductionofFormworkHGU管溝內(nèi)外表面均采用不小于15mm厚膠合板，背方采用50×100木方，TheformworkusedatinteriorandexteriorsurfaceofHGUaremadebyplywoodwhichshallnotbethinnerthan15mmandthe50×100timbershallbeappliedtothebackbracing.Allformworksareassembledonsite.8.2廊道模板制作要求8.2RequirementforPipewayFormworkManufacturing寬高偏差：+2mm-3mmWidth-HeightDeviation:+2mmto-3mm對角偏差：-3mm+5mmDiagonalDeviation:-3mmto+5mm平整度：2mmFlatness:2mm其他要求見《模板制作加工程序》RefertoFormworkManufacturingandProcessingProcdure8.3模板安裝8.3InstallationofFormwork8.3.1模板采用50*100木方背楞次龍骨、100*100木方和雙鋼管主龍骨加固，對拉螺桿、鋼管斜撐固定的形式8.3.1Theformworkshallbefastenedby50×100timberwhichisactingassecondaryframe,100×100timber,dualsteelpipewhichisactingasmainframe,counter-pulledscrewandsteel-pipediagonalbracing.8.3.2第二階段模板固定利用預(yù)埋在第一階段混凝土中的高強螺桿定位，內(nèi)墻側(cè)模加固采用鋼管斜撐和水平橫撐。HGU管溝支模示意圖參見8.3.2Thesecondphaseformworkshallbefastenedbythethefirstphaseconcrete.Thelateralformworkofinteriorwallshallbefastenedbysteel-pipediagonalbracingandhorizontalbracing.Refertoattacheddiagram1forHGUformworkinstallationdiagram..3Adequatediagonalbracingsshallbeplacedbetween.4Spongegluestripordouble-sidedtapeshallbeappliedmudleakage.Ifnecessary,releaseagentshallbeappliedtotheformworksurface..5垂直度:3mmPerpendicularity:3mm相鄰接縫高差：2mmHeightdifferencebetweenadjacentjoints:2mm平整度：2mmFlatness:2mm上口尺寸：+2mm0mmDimensionofBackCut:+2mm0mm位置：2mmPosition:2mm8.4模板拆除8.4StrippingofFormwork側(cè)模要在混凝土強度能保證構(gòu)件不變形，棱角完整時方可拆模；而頂模要在混凝土強度達到設(shè)計強度的75%之后才能拆除（可根據(jù)現(xiàn)場澆筑混凝土?xí)r留置的砼塊養(yǎng)護天數(shù)的抗壓強度試驗報告進行模板拆除）。Whentheconcretestrengthcanensurethatthecomponentsshallnotdeformandtheangularityofitshallbecomplete,thelateralformworkshallbestripped.Thetopformworkshallbestrippedwhentheconcretestrengthreaches75%ofthedesignedstrength(refertothecompressivestrengthtestreportofconcretetestpiecefornecessaryinformation).9.鋼筋工程9.ReinforcementWork9.1鋼筋材質(zhì)及制作9.1ReinforcementMaterialandFabrication9.1.1鋼筋的機械、化學(xué)性能應(yīng)符合技術(shù)規(guī)格書（1-3）9.1.1Themechanicalandchemicalpropertiesofreinforcementshallbeinlinewiththeregulationoftechnicalspecification(1-3).Theratioofmeasuredvalueofreinforcementtensilestrengthandthatofyieldstrengthshallnotbesmallerthan1.25.Theratioofmeasuredvalueofreinforcementyieldstrengthandstrengthstandardvalueshallbesmallerthan1.3.Whenthereinforcementisfoundfragile,itsweldabilityormechanicalperformanceispoor,chemicalconstituentsofthespecificbatchofreinforcementshallbechecked.Otherspeci9.1.2鋼筋應(yīng)精確彎曲成圖紙和鋼筋簡圖上標(biāo)明的形狀和尺寸，所有的彎曲尺寸應(yīng)符合有關(guān)規(guī)定，除非業(yè)主另有指示。HRB500級的鋼筋的彎弧內(nèi)直徑不小于鋼筋直徑的4倍，彎鉤的彎后平直部分長度應(yīng)符合設(shè)計要求；9.1.3Thereinforcementshallbebentpriciselyasshowninthedrawingandreinforcementsketch.UnlessspecifiedbytheOwner,thebendingsizeofreinforcementshallbeinlin9.2鋼筋保護層9.2CoverofReinforcement9.2.1廊道鋼筋保護層厚度分為廊道外側(cè)6cm、廊道內(nèi)側(cè)5cm9.2.1Outsidethepipeway,thecoverofreinforcementis6cmthickandinsidethepipeway,itis5cm9.2.2鋼筋的保護層采用混凝土墊塊支撐鋼筋來實現(xiàn)，墊塊用與澆筑在鋼筋周圍的混凝土相同的材料按相同的比例攪拌成的混凝土或相同配比的砂漿制作，并在墊塊中埋入兩根209.2.2Thereinforcementisprotectedbyconcretespacerblock,whichismadeofconcreteormortarwiththesamemixingratiooftheconcretepouredaroundthereinforcement.Two20#leadwiresareembeddedinthespacerblock.Whenfixingthereinforcement,theconcretespacerblockshallbefixed9.3鋼筋連接9.3ReinforcementConnection9.3.1鋼筋連接通常采用相互交疊的方式進行，也就是搭接；經(jīng)業(yè)主批準(zhǔn)，也可采用機械連接或焊接9.3.1Usually,overlappingshallbeappliedtothereinforcementconnection.Me.2Alltheoxidescale,rust,paint,oil,earthandothersubstanceswhichshallaffectthebondingofreinforcementandconcreteshallbecleanedbeforereinforcementis.3Whendoublelayersofreinforcementareplaced,reinforcementstirrupandtierod9.3.4鋼筋的接頭必須保證有設(shè)計要求的搭接長度，交接處采用18209.3.4Thereinforcementoverlappinglengthshallbeinlinewiththedesignrequirementand18#,19#,20#leadwireshallbeappliedtofixthejointstoensuredesignedshapeandcorrectpositionofreinforcementandtopreventdisplacmentduringconcreting.Bothendsofleadwireforrebarfixingshallbeburiedintheconcretecover.Ifthereinforcementjointsismechanicallyconnected,thentheconnectionshallbeinlinewithrelevantrequirementofGeneralTechnicalRegulationofMechanicalReinforcementConnection9.4鋼筋的防污染保護9.4ContaminationProofofReinforcement澆混凝土前，鋼筋外露部分采用塑料薄膜或塑料管包裹，以防被混凝土污染，下次澆筑時，拆除塑料薄膜即可。Beforeconcreteplacing,theexposedpartofreinforcementshallbewrappedwithplasticmembranetopreventitfromcontaminationbytheconcrete.Plasticmembraneshallberemovedwhenconcreteispourednexttime.10、混凝土工程10.ConcreteWork10.1混凝土材料和標(biāo)準(zhǔn)10.1ConcreteMaterialandStandard10.1.1水泥：采用經(jīng)業(yè)主批準(zhǔn)的水泥，水泥質(zhì)量標(biāo)準(zhǔn)需符合技術(shù)規(guī)格書（1-2）要求10.1.1Cement:10.1.2碎石、砂子：混凝土骨料由現(xiàn)場采石場生產(chǎn)，碎石、砂子各級配需要量都必須分別計量后混合攪拌，不準(zhǔn)使用單級配粒級骨料。砂子、碎石試驗分別執(zhí)行《普通混凝土用砂質(zhì)量標(biāo)準(zhǔn)及檢