【5A版】国际会议汇报(英文).pptx

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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Tunnelboringmachin

2、e(TBM):隧道掘进机Gush:涌出Double-spool:双轴OutlinePART1IntroductionPART2MethodPART3ResultsPART4ConclusionIntroduction11.1BackgroundShieldtunnelingtechnologyAdvantagesDisadvantages1.Highlevelofmechanization1.Largescale2.Fastprogressionoftunnelingworks2.Longduration3.Lesserenviron

3、mentalimpact3.Complextechnicalissues1.2ObjectiveTheprimaryaimsofthisstudyweretoinvestigate:OverallProcessSafetyManagement(OPSM)intunnelconstruction.iiiiAreal-timeupdateofbothenvironmentalparametersandcontrolmeasures.iiAmorereasonablesolutionforthewaterproofingandreinfor

4、cingworks.1.3ProjectprofileWuhanYangtzeMetroTunnel(WYMT)Characteristics:Double-spooltunnelconnectingtwolargecitiesTwosetsofventilationshaftsAcurveradiusof350mandanextremelyclosedistanceawayfromYangtzeRiver4.FinesandstoneandsiltyclayMethod2WaterproofingGroundfreezingLowe

5、ringofwaterlevelmethodReinforcing1.Thecementpastetendstobewashedawaybytheflowingwater,resultinginpoorreinforcement.Ahigh-pressurejetgrouting2.1Safetysystemdesign2.NosignificantwaterproofingresultswouldbeachievedduetothecloseproximitytotheYangtzeRiver.2.1Safetysystemdesi

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

7、gthDrilltoobtaintwocoresoneachsidedeepintotheexcavationbottomfivemilesawayfromthetunnelaxis,andthenconductthecoretest.>=1MpaReinforcedsoilpermeabilityDrillfourholeswell-distributedaroundtheexcavationregion,andthentestthepermeabilityofeachhole.<=1m3/dReinforcedsoilhomog

8、eneityDrilltoobtainfourcoreswell-distributedaroundtheexcavationregion,andthentestthehomogeneityofeachcore.Unif