韩国釜山沉管隧道

Busan-GeojeFixedLinkProject2009.06.ImmersedTunnelSegmentPrecastingforGeoje-doKadeok-do-CONTENT-Ⅰ.ProjectOverviewⅡ.LocationⅢ.FactsandfiguresⅣ.ElementProductionⅤ.Warping,TowingandMooringⅥ.ImmersionWorksⅦ.GeneralbackgrounditemsBusan-GeojeFixedLinkProject2Roadwaylanesineachdirection:L=8.2Km,B=20.5mImmersedtunnel:3.7km2xCablestayedbridge:1.6km4xApproachbridges:1.9km2xBoredtunnels:1.0km2004.12.10~2010.12.09(Construction:6years,Concession:40years)Startpoint:Yuhori,Jangmockmyun,Kyungnam,GeojesiGKFixedLinkCorporationYooshinEngineeringCorporationProjectnameKeydataLocationConcessionaireConstructionPeriodContractorSupervisorCOWIinJVwith5KoreanconsultantsDesignerProjectcostEndpoint:Chunsungdong,Gaduckdo,Kangseogu,BusansiTotalprojectcost:$1.4Bil.(basedonDecember1999prices)Governmentsubsidy:$0.4Bil.Privateinvestment:$1Bil.Ⅰ.ProjectOverview:44.6%:21.3%:13.6%:8.0%:5.7%:5.3%:1.5%DAEWOOE&CDAELIMDOOSANIndustrialDevelopmentSKEngineering&ConstructionKDCHANILWONHAConstruction진동KosungTongyeongiGeojeSinhyunMasanChangwon`JinhaeBusanAnjeongYard(ImmersedTunnelElements&BridgeSubstructure)ObiYard(BridgeSuperstructure)ImmersedtunnelandCablestayedbridgesGeojeIslandOverallProjectL=8.2kmCableStayedBridges&boredtunnelsL=4.5kmImmersedTunnelL=3.7kmⅡ.LocationTemporaryMooringArea(37KmfromGaduk)GadukIslandNavalbaseProjectsectionBirdseyeviewThreePyloncablestayedbridgeTwoPyloncablestayedbridgeImmersedTunnel(3.7KM)Mainspan:230M/Navigationclearance:36M/PylonHeight:102MMainspan:475M/Navigationclearance:52M/PylonHeight:156MGeojeIslandGadukIslandⅢ.FactsandFigures(Segments/Elements)ElementsQuantity:18No.(3.24km)Length:180m(8x22.5msegments)Weight:approximately54,000tSegmentsWidth:26.46m,Length:22.50m,Height:9.97mMainmaterialsRebar:430t/seg.(E1,2)&330t/seg(E3,4)Concrete:2,264㎥/segmentStrand:132t/elementSteelcast-initems:1,100t/elementS1S2S3S4S5S6S7S822.5M180M[Element]ShearKeyShearKey▶TypicalCrosssectionBallastConcreteBallastConcreteShearKeyPRIMARYENDSECONDARYEND▶Elevation9.97mt=0.58mt=1.35mt=1.33mt=1.33mAreaofYard(329m×870m)SiteofficeDockGate(Floating)DryDockMooringArea-Location:AnjeongNationalIndustrialKyungnamTongyeong-Keydata:Overallareaapprox.250,000m²Drydockvolume100,000m²ItemDryDockElementproductionAreaforbridgesubstructureBridgeCaissonconstructionT.T.PconstructionBridgePierconstructionSizeL=474m,W=145m(EL=-11.15)W=26.46~28.46m,H=9.97m,L=180mL=268m,W=50mQuantity1181H=10~34m(1,140~9,800ton)234ton~72ton8,600H=14~37m(1,260~3,500ton)22CommentMax.5elementsatonetime8complete,5@70%completeCompletedArtificialislandnowcompletedSubstantiallycompletedMooringareaL=556m,W=217m1Max.6elementsatonetime○OverviewⅢ.AnjeongPre-CastingYard○Overview-Location:ObiIndustrialcomplexes,Kyungnam-Area:Approx.130,000m²ItemSuperstructureworkareaApproachbridgespansPre-castdeckpanelsforcable-stayedbridgesSizeL=250m,W=100m,Total:140000M²1Spanslengthsfrom49~90mW=10.35~12.35m,L=4mQuantity130702Comments8spansplacedStartssoonElementprotectionworksCore-Loc12Ton,Accropode25,35,50Ton5,473SubstantiallycompletedAccropodeCore-LocⅢ.ObiPre-CastingyardItemCaissonPierDesign1111Completed114Beingbuilt15Notstarted-2ItemCaissonPierDesign1211Completed12EABeingbuilt13Notstarted-8※.Cablestayedbridge○2PylonBridge○3PylonBridge○WesternPortal(Jungjukisland)○EasternPortal(Gadukisland)MainWorks1.Dredgingandfoundations2.Immersingandbackfilling3.Internalworksintheelements4.Cut&Covertunnelconstruction-East:170m-West:170m※.ImmersedTunnelⅣ.ElementProductionFlowChartSetplywoodonsupportslabErectrebaraccessplatforms,Fixbottomslab&lowerwallrebarInstallsteelcast-initemsDismantleinneraccessplatformsMoveformworklaunchinggirder,InstallinnerformsFixupperwall&topslabrebarandinstallsteelcast-initemsDismantlerebaraccessplatforms,Inspectrebaretc..ErectstopendandouterformsDofinalinspectionandprepareforplacingconcretePlaceconcrete(24hr)andCure(5days)RepetitiveworkInnerFormOuterFormRainShelterLaunchingGirder▶FormworkSystem(KumkangDoka)Ⅳ.ElementProduction▶Setplywood,Erectrebaraccessplatforms,Fixbottomslab&lowerwallrebarRebarworkplatformBottomplywoodⅣ.ElementProduction▶MoveLaunchingGirderandSetInnerFormⅣ.ElementProduction▶Fixupperwall&topslabrebar,Installsteelcast-initems,Erectstopendandouterforms,prepareforconcretingⅣ.ElementProduction▶Concreteplacingandcuring◀Concreteplacing(24hourscontinuousworking)Quantity:2,264㎥/segEquipment-Concretepumpwith32mboom:4active,2standby-Staticconcretepumps:2-Concretetruckmixers:13-BatchingPlant(210㎥/hr):2▼Curinginformwork:–Winter5–7days,Summer4days이동식보일러(3톤)ConcreteconstituentDetailsStrength35MPaSlagCement319kg/㎥Water145kg/㎥AddictiveFlyash83kg/㎥SilicaFume12kg/㎥AdmixtureSilkroad,EcontaxHigh-performancewaterreducingagentⅣ.ElementProduction▶CrosssectionInjectableWaterStopShearKeyShearKeyShearKeyP.T.ductsShearKeyOmegaAnchorPlateP.TWorkQuantity:32tendons/element(28@19strand+4@31strand)Weight:132Tonnes/elementStrand:7wirex15.24mmdiameterDuct:Φ110mmorΦ140mmInjectableWaterStopManufacturerTrelleborgMaterialSBRServicelife100yearsLength(L)66mPurpose:Itiscastintoeachsideofthesegmentj