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基于三维随机坍塌模型的软岩隧道掌子面抗震稳定性的可靠度分析（英文）.docx

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基于三维随机坍塌模型的软岩隧道掌子面抗震稳定性的可靠度分析（英文）为题目，写不少于1200的论文 ReliabilityAnalysisofSeismicStabilityofSoftRockTunnelVaultBasedonThree-dimensionalRandomCollapseModel Abstract: Theseismicstabilityoftunnelvaultsisacriticalfactortoensurethesafetyandrobustnessofundergroundstructures.Inthispaper,weproposeareliabilityanalysismethodfortheseismicstabilityofsoftrocktunnelvaultsusingathree-dimensionalrandomcollapsemodel.TheMonteCarlosimulationmethodisusedtosolvethereliabilityprobabilityofthecriticalfactorfortunnelvaultcollapse,andtheinfluenceofthegeologicalandgeotechnicalfactorsontheseismicstabilityoftunnelvaultsisstudied.Theresultshowsthatthedistributionofthecriticalfactorfortunnelvaultcollapsefollowsanormaldistribution,andthereliabilityprobabilitydecreaseswiththeincreaseoftheseismicacceleration.Thegeologicalandgeotechnicalfactors,suchastherockmassqualityrating,thestrengthoftherockmass,andthesupportsystemtype,haveasignificantimpactontheseismicstabilityoftunnelvaults.Thisresearchprovidesareferencefortheoptimizationofthedesignandconstructionofsoftrocktunnelvaults. Keywords:softrocktunnel,seismicstability,reliabilityanalysis,MonteCarlosimulation,three-dimensionalrandomcollapsemodel 1.Introduction Withtherapiddevelopmentofundergroundengineeringconstructiontechnology,undergroundtunnelsandcavernsarebeingexpandedandconstructedincreasingly.Asacrucialcomponentoftheundergroundengineering,tunnelvaultstabilityiscrucialforguaranteeingthesafetyandstabilityoftunnelsandundergroundspaces.Withthethreatofearthquakesincreasing,suchasTangshanearthquake,Lushanearthquake,andWenchuanearthquake,thesafetyofundergroundtunnelsisbecomingapressingissue. Theseismicstabilityoftunnelvaultsmainlyinvolvestheevaluationofthefactorsthataffectthefailureofthevaultunderearthquakeloading.Thetraditionalmethodsfordeterminingseismicstabilityrelymainlyontheoreticalcalculations,empiricalmethods,andfiniteelementanalysismethods.However,theseapproachesneglectvariousuncertaintiesandrandomness.Therefore,itiscrucialtodevelopareliablemethodth