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海底隧道不良地质段围岩稳定性分析及其控制.docx

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海底隧道不良地质段围岩稳定性分析及其控制 Title:AnalysisandControlofSurroundingRockStabilityofProblematicGeologicalSectionsinSubseaTunnels Abstract: Subseatunnelsarecriticalinfrastructuresthatconnectislands,facilitatetransportation,andpromoteeconomicdevelopment.However,thestabilityofsurroundingrockinproblematicgeologicalsectionsofthesetunnelsposessignificantchallengestotheirconstructionandmaintenance.Thispaperaimstoanalyzethestabilityofsurroundingrockinproblematicgeologicalsectionsofsubseatunnelsandproposeeffectivecontrolmeasures. Introduction: Subseatunnelsareoftenconstructedincomplexgeologicalconditions,includingsoftground,faultzones,andareaspronetolandslidesandsubsidence.Thestabilityofsurroundingrockiscrucialforthesafeandsustainableoperationofthesetunnels.Problematicgeologicalsections,suchasthoseexhibitingpoorgroundconditionsorhighwaterpressure,requirerigorousanalysisandrobustcontrolmeasures. Methods: 1.GeologicalInvestigation:Acomprehensivegeologicalinvestigationisconductedtoidentifythecharacteristics,properties,anddistributionofsurroundingrockformations.Thisincludesmappingstrata,collectingrocksamples,andanalyzingtheirphysicalandmechanicalproperties. 2.GeotechnicalAnalysis:Methodssuchasnumericalmodeling,geophysicalexploration,andlaboratorytestingareemployedtoassessthestabilityanddeformationcharacteristicsofthesurroundingrock.Factorssuchasrockstrength,stressdistribution,groundwaterconditions,andpotentialfailuremodesareconsidered. 3.StabilityAnalysis:Variousanalyticalandnumericalmethods,suchaslimitequilibriumanalysisandfiniteelementanalysis,areusedtoevaluatethestabilityoftheproblematicgeologicalsections.Thisincludesassessingpotentialfailuremechanisms,estimatingfactorsofsafety,andidentifyingcriticalfailurezones. 4.ControlMeasures:Basedontheanalysisresults,appropriatecontrolmeasuresaredesignedtoenhancethestabilityofthesurroundingrock.Thesemayincludesurfacesupportsystems,groutingtechniques,reinforcementmeasures,anddrainagesystems.Thefeasibility,effectiveness,andcost-efficiencyofeachmeasu