苏通大桥桩基施工方案汇报-英文版PPT格式课件下载.ppt

苏通大桥桩基施工方案汇报-英文版PPT格式课件下载.ppt

《苏通大桥桩基施工方案汇报-英文版PPT格式课件下载.ppt》由会员分享，可在线阅读，更多相关《苏通大桥桩基施工方案汇报-英文版PPT格式课件下载.ppt（45页珍藏版）》请在冰豆网上搜索。

SutongYangtzeRiverHighwayBridgeSutongYangtzeRiverHighwayBridgeConstructionMethodStatementforPileFoundationTheSecondNavigationEngineeringBureauTheSecondNavigationEngineeringBureauCHEC（Group）CHEC（Group）November,2003November,20031.1.OutlineoftheProjectOutlineoftheProject2.2.TheMethodStatementofPileFoundationforPier4TheMethodStatementofPileFoundationforPier43.3.ConstructionofMainPier1and2ConstructionofMainPier1and2中港中港中港中港第二航务工程局第二航务工程局第二航务工程局第二航务工程局ProjectlocationProjectlocationPierno.4Pierno.43kmfrombank3kmfrombankHHydrographicydrographicconditionsconditionsFloodperiod：

@#@June-SeptemberSmoothwaterperiod:

@#@May-OctoberLowwaterperiod:

@#@November-AprilTableofmeanvelocityinverticalformax.floodandebbtide（m/s）MonthMax.FloodVelocityMax.EbbVelocity11-1.36-1.361.451.4522-1.41-1.411.731.7333-1.27-1.271.701.7044-1.26-1.261.811.8155-1.27-1.271.961.9666-1.27-1.272.172.1777-1.50-1.502.482.4888-1.55-1.552.212.2199-1.31-1.312.012.011010-1.43-1.431.911.911111-1.34-1.341.661.661212-1.42-1.421.691.69GeologicalconditionsGeologicalconditionsNorthpierNorthpierProjectfeaturesProjectfeaturesa.Deepwater,highcurrentvelocityandbusynavigation.b.Waterdepth:

@#@30m,maxwatervelocity3.0m/s，difficulttoinstalltheplatform.c.Steelcasinglength:

@#@69.2m，weight:

@#@125t，penetrateintoriverbed34m，difficulttosinkthecasing.d.Thepilewillpenetratethicksandlayers,easytocauseboreholecollapse.e.Thesimultaneousconstructionofpier4scourprotection（amountover300,000m3）andpiledrillingcausesthedifficultyforconstructionorganization.a、Riverbedpre-protectionshallbecarriedoutbeforesetupoftheplatforminordertoavoidscouroftheriverbed.b、Steelcasingisdirectlyusedtobetheplatformsupportingstructure.Thealternativesolutionbyusingadditionalsupportingpileswillcausepilecollisionduetotheshortspacebetweencasings.c、Onemastcranewiththecapacityof70tandtwogantrycraneswiththecapacityof80tshallbeinstalledonupstreamanddownstreamrespectivelysoastoformthewokconditionlikeonshore.d、Boringslurryfabricationequipmentshallbeinstalledontheboringplatformsoastoovercometheimpactfromwindandwavetothesupplyofslurries.e、Bigvesselsshouldbeequippedtosuitthehydrologicalconditionofconstructionarea.BasicconceptsBasicconceptsConstructionscheduleConstructionscheduleContentContentNo.No.Constructionofboredpileandpost-groutingofpiletip6Installationofplatformequipments5Sinkingofsteelcasingandconnectionofcasings4Setupofpreliminaryplatform3Permanentprotection2Riverbedpre-protection12003.12.10-2004.9.312003.11.30-2003.2.282003.10.31-2004.2.202003.9.30-2003.10.312003.11.25-2004.6.312003.8.1-2003.10.30TimeTimeTypeofconstructionplatformstructuresTypeofconstructionplatformstructuresIInniittiiaallppllaattffoorrmmDDoowwnnssttrreeaammppllaattffoorrmmDrillingplatformDrillingplatformProfileoftheconstructionplatformProfileoftheconstructionplatformDesignstagesDesignstagesCalculationstagesinconstructionperiodofplatformCalculationofsinglepilestabilityStructurecheckwhensinkingsteelcasingwithsetupofguidanceontheinitialplatformCalculationstagesforplatforminserviceCalculationofinitialplatformanddownstreamplatformstructuresCalculationoftheoverallstabilityafterformingofthewholeconstructionplatformCalculationoftheinitialplatformCalculationoftheinitialplatformvonmisesstressvonmisesstressDisplacementoftheplatformalongwaterflowdirection（m）Axialstress（Pa）CalculationresultsoftheinitialplatformItemCalculationresultsMax.horizontaldisplacementoftheplatform（mm）Transverse（alongthetidedirection）69.02469.024Longitudinal（alongaxialdirectionofthebridge）8.4588.458Stressinplatformelements（MPa）Max.axialstressinmember106106Max.shearstressinmember4.884.88Max.vonmisesstress106106ForcesofplatformmembersMax.axialforce（kN）25002500Max.shearforce（kN）531.879531.879Max.bendingmoment（kN.M）58205820CalculationofthewholeplatformCalculationofthewholeplatformvonmisesstressvonmisesstressDDiissppllaacceemmeennttoofftthheeplatformalongthewaterflowdirection（m）Axialstress（Pa）CalculationresultoftheplatformintegrityCalculationresultoftheplatformintegrityItemItemCalculationCalculationResultResultMax.horizontaldisplacementoftheplatform（mm）Transverse（alongthetidedirection）53.5253.52Longitudinal（alongaxialdirectionofthebridge）2.0512.051Stressinplatformelements（MPa）Max.axialstressinmember109109Max.shearstressinmember1.841.84Max.vonmisesstress109109ForceinplatformmembersMax.axialforce（kN）30303030Max.shearforce（kN）205205Max.bendingmoment（kN.M）55505550DesignofDesignofanti-collisionanti-collisionFlowchartFlowchartSetupinitialplatformontheupstreamsideUseca