国际会议汇报ppt英文.ppt

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1、Safetymanagementintunnelconstruction:CasestudyofWuhanmetroconstructioninChinaAuthor：MiroslawJ.SkibniewskiLieyunDing,etalReporter:WuTong-gangCentralSouthUniversityNewwordsShaft:通风井Grouting:灌浆，给…灌浆High-pressurejetgroutingpiles(HJGP):高压喷射灌浆柱Siltyclay:粉质黏土Tunnelboringmachine(T

2、BM):隧道掘进机Gush:涌出Double-spool:双轴OutlinePART1IntroductionPART2MethodPART3ResultsPART4ConclusionIntroduction11.1BackgroundShieldtunnelingtechnologyAdvantagesDisadvantages1.Highlevelofmechanization1.Largescale2.Fastprogressionoftunnelingworks2.Longduration3.Lesserenvironmental

3、impact3.Complextechnicalissues1.2ObjectiveTheprimaryaimsofthisstudyweretoinvestigate:OverallProcessSafetyManagement(OPSM)intunnelconstruction.iiiiAreal-timeupdateofbothenvironmentalparametersandcontrolmeasures.iiAmorereasonablesolutionforthewaterproofingandreinforcingworks

4、.1.3ProjectprofileWuhanYangtzeMetroTunnel(WYMT)Characteristics:Double-spooltunnelconnectingtwolargecitiesTwosetsofventilationshaftsAcurveradiusof350mandanextremelyclosedistanceawayfromYangtzeRiver4.FinesandstoneandsiltyclayMethod2WaterproofingGroundfreezingLoweringofwaterl

5、evelmethodReinforcing1.Thecementpastetendstobewashedawaybytheflowingwater,resultinginpoorreinforcement.Ahigh-pressurejetgrouting2.1Safetysystemdesign2.NosignificantwaterproofingresultswouldbeachievedduetothecloseproximitytotheYangtzeRiver.2.1SafetysystemdesignGroundheterog

6、-eneityConstru-ctionmethodsSoilstructureinteract-ionNon-linearbehaviorofsoils2.2SafetyanalysisSystemicsafetyEconomicrequirementsNumericalsimulationANSYS2.3Safetycontrolprocess2.3.1ReinforcementcontrolItemsCheckingmethodsCheckingcriteriaReinforcedsoilstrengthDrilltoobtaintw

7、ocoresoneachsidedeepintotheexcavationbottomfivemilesawayfromthetunnelaxis,andthenconductthecoretest.>=1MpaReinforcedsoilpermeabilityDrillfourholeswell-distributedaroundtheexcavationregion,andthentestthepermeabilityofeachhole.<=1m3/dReinforcedsoilhomogeneityDrilltoobtainfo

8、urcoreswell-distributedaroundtheexcavationregion,andthentestthehomogeneityofeachcore.Unif