最新国际会议汇报ppt英文教学讲义ppt.ppt

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1、国际会议汇报ppt英文NewwordsShaft: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(TBM):隧道掘进机Gush:涌出Double-spool:双轴OutlinePART1IntroductionPART2MethodPART3ResultsPART4Conclusion1.3ProjectprofileWuhanYangtzeMetroTunnel(WYMT)Characteristics:D

2、ouble-spooltunnelconnectingtwolargecitiesTwosetsofventilationshaftsAcurveradiusof350mandanextremelyclosedistanceawayfromYangtzeRiver4.FinesandstoneandsiltyclayMethod2WaterproofingGroundfreezingLoweringofwaterlevelmethodReinforcing1.Thecementpastetendstobewashedawaybytheflowingw

3、ater,resultinginpoorreinforcement.Ahigh-pressurejetgrouting2.1Safetysystemdesign2.NosignificantwaterproofingresultswouldbeachievedduetothecloseproximitytotheYangtzeRiver.2.1SafetysystemdesignGroundheterog-eneityConstru-ctionmethodsSoilstructureinteract-ionNon-linearbehaviorofso

4、ils2.2SafetyanalysisSystemicsafetyEconomicrequirementsNumericalsimulationANSYS2.3Safetycontrolprocess2.3.1ReinforcementcontrolItemsCheckingmethodsCheckingcriteriaReinforcedsoilstrengthDrilltoobtaintwocoresoneachsidedeepintotheexcavationbottomfivemilesawayfromthetunnelaxis,andth

5、enconductthecoretest.>=1MpaReinforcedsoilpermeabilityDrillfourholeswell-distributedaroundtheexcavationregion,andthentestthepermeabilityofeachhole.<=1m3/dReinforcedsoilhomogeneityDrilltoobtainfourcoreswell-distributedaroundtheexcavationregion,andthentestthehomogeneityofeachcore

6、.Uniformity2.3Safetycontrolprocess2.3.2FreezingcontrolLayoutoffreezingholesWorkersareexaminingthefreezingeffect.2.3Safetycontrolprocess2.3.3UCWremovingcontrolWorkersarecuttingdownthesteelwithinUCW.Workersarepastingquiltsontotheworkfaceofthetunnelportal.Results33Results3Resultsa

7、bca:Distributionofcompressivestressb:Distributionoftensilestressc:DistributionofshearstressConclusion4Conclusion1Treatschemesforwaterproofingandreinforcingworks2BoringattitudecontrolofTBM3NumericalanalysesCombinefreezingmethodandHJGPIncludethepreliminarydeviationaheadofthedrill

8、ingprocessApplynumericalsimulationbyANSYSQuestion-invi