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基于能量积蓄的扰动流变耦合作用岩石破坏机理研究.docx

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基于能量积蓄的扰动流变耦合作用岩石破坏机理研究 Abstract Themechanismofrockfailureundertheperturbationrheologicalcouplingeffectbasedonenergystorageiscurrentlyanimportantresearchtopicinthefieldofgeomechanics.Thispapersummarizesthecurrentresearchprogressinthefieldofrockfailuremechanism,andanalyzestheperturbationrheologicalcouplingeffectbasedonenergystorage.Then,theformationmechanismofrockfailureunderthiscouplingeffectisdiscussed,andtherelevanttheoreticalandexperimentalresearchmethodsareintroduced.Finally,somesuggestionsandprospectsforfutureresearcharepresented. Keywords:rockfailure,perturbationrheologicalcouplingeffect,energystorage,formationmechanism 1.Introduction Rockfailureisacomplexphenomenonthatisinfluencedbymanyfactors,suchasthestressstateoftherockmass,thephysicalandmechanicalpropertiesoftherock,andthegeologicalconditions.Inrecentyears,theperturbationrheologicalcouplingeffectbasedonenergystoragehasbeenrecognizedasanimportantcauseofrockfailure.Theperturbationrheologicalcouplingeffectreferstotheinteractionbetweentheperturbationenergyandtherheologicalbehavioroftherock,anditsmechanismisrelatedtotheenergystorageoftherockmass.Themechanismofrockfailureunderthiscouplingeffectisstillnotfullyunderstood,andfurtherresearchisneeded. 2.PerturbationRheologicalCouplingEffectBasedonEnergyStorage Theperturbationenergyreferstotheenergyproducedbytheexternaldisturbanceontherock,suchastheearthquake,blasting,andexcavation.Therheologicalbehavioroftherockreferstothedeformationandflowoftherockundertheinfluenceofexternalforcesovertime.Theperturbationrheologicalcouplingeffectistheinteractionbetweentheperturbationenergyandtherheologicalbehavioroftherock,andithasacloserelationshipwiththeenergystorageoftherockmass. Theenergystoredintherockmassisrelatedtothephysicalandmechanicalpropertiesoftherock,suchasitselasticmodulus,Poisson'sratio,andstrength.Whenperturbationenergyisappliedtotherock,suchasseismicwavesorexcavation,theenergyispartiallystoredintherockmass.Thestoredenergycancausechangesinthephysicalandmechanicalpro