國際會議匯報ppt(英文).ppt
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Safetymanagementintunnelconstruction CasestudyofWuhanmetroconstructioninChina Author MiroslawJ SkibniewskiLieyunDing etalReporter WuTong gangCentralSouthUniversity Newwords Shaft 通風井Grouting 灌漿 給 灌漿High pressurejetgroutingpiles HJGP 高壓噴射灌漿柱Siltyclay 粉質黏土Tunnelboringmachine TBM 隧道掘進機Gush 涌出Double spool 雙軸 Outline PART1Introduction PART2Method PART3Results PART4Conclusion Introduction 1 1 1Background Shieldtunnelingtechnology 1 2Objective 1 3Projectprofile WuhanYangtzeMetroTunnel WYMT Characteristics Double spooltunnelconnectingtwolargecitiesTwosetsofventilationshaftsAcurveradiusof350mandanextremelyclosedistanceawayfromYangtzeRiver4 Finesandstoneandsiltyclay Method 2 Waterproofing Groundfreezing Loweringofwaterlevelmethod Reinforcing 1 Thecementpastetendstobewashedawaybytheflowingwater resultinginpoorreinforcement Ahigh pressurejetgrouting 2 1Safetysystemdesign 2 NosignificantwaterproofingresultswouldbeachievedduetothecloseproximitytotheYangtzeRiver 2 1Safetysystemdesign Groundheterog eneity Constru ctionmethods Soilstructureinteract ion Non linearbehaviorofsoils 2 2Safetyanalysis Systemicsafety Economicrequirements Numericalsimulation ANSYS 2 3Safetycontrolprocess 2 3 1Reinforcementcontrol 2 3Safetycontrolprocess 2 3 2Freezingcontrol Layoutoffreezingholes Workersareexaminingthefreezingeffect 2 3Safetycontrolprocess 2 3 3UCWremovingcontrol WorkersarecuttingdownthesteelwithinUCW Workersarepastingquiltsontotheworkfaceofthetunnelportal Results 3 3Results 3Results a b c a Distributionofcompressivestressb Distributionoftensilestressc Distributionofshearstress Conclusion 4 Conclusion CombinefreezingmethodandHJGP Includethepreliminarydeviationaheadofthedrillingprocess ApplynumericalsimulationbyANSYS Question inviting 5 LOGOHERE THANKYOU PRESENTEDBYWuTong gang
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