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ID:62111970
大小:4.16 MB
页数:79页
时间:2021-04-17
《最新国际会议汇报ppt英文教学讲义ppt.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
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
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