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各向异性纯黏性土中纵向倾斜隧道掌子面稳定性分析（英文）.docx

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各向异性纯黏性土中纵向倾斜隧道掌子面稳定性分析（英文） Title:StabilityAnalysisofInclinedTunnelsinAnisotropicPurelyViscousSoil Abstract: Inclinedtunnelsarefrequentlyencounteredincivilengineeringprojectssuchastransportationandmining.Thestabilityoftunnelfacesiscrucialforthesafetyandsustainabilityofsuchprojects.Thispaperaimstoanalyzethestabilityofthefaceofaninclinedtunnelinanisotropicpurelyviscoussoil.Acomprehensiveanalysisisconductedconsideringtheeffectsofdifferentfactorssuchastunnelinclination,pore-pressuredistribution,andsoilanisotropy. Introduction: Inclinedtunnelsareoftenpreferredduetotheiradvantagesinvariousapplications,suchasimprovedaccessibilityandreducedexcavationcosts.Thestabilityofthetunnelfaceisinfluencedbyfactorssuchassoilproperties,groundwaterconditions,andgeometricparameters.Understandingthebehaviorofinclinedtunnelfacesinanisotropicpurelyviscoussoilisessentialforthedesignandconstructionprocesstoensurethesafetyanddurabilityofthetunnelstructure. LiteratureReview: Previousstudieshaveinvestigatedthestabilityoftunnelsinvarioussoilconditions.Thestabilityofinclinedtunnelsinpurelyviscoussoils,particularlyanisotropicsoils,requiresfurtherinvestigation.Somestudieshavefocusedonthestabilityanalysisoftunnelsinisotropiccohesivesoils;however,inanisotropicsoils,thebehaviormaysignificantlydifferduetothedirectionaldependenceofsoilproperties. Methodology: Thisstudyemploysnumericalmodelingusingfiniteelementanalysistoanalyzethestabilityofinclinedtunnelfaces.ThenumericalmodelisdevelopedbasedontheMohr-Coulombfailurecriterionandanisotropicsoilbehavior.Themodelaccountsforpore-pressuredistributionwithinthesoil,whichisconsideredasakeyfactoraffectingtunnelfacestability.Varioustunnelinclinationsandanisotropicsoilpropertiesareconsideredtoevaluatetheirinfluenceonthestabilityofthetunnelface. ResultsandDiscussion: Thestabilityanalysisrevealsthattheinclinationofthetunnelsignificantlyaffectsthestabilityofthetunnelfaceinanisotropicpurelyviscoussoil.Itisobservedthatasteepertunnelinclinationleadstohigherriskoffaceinstab