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1、長(zhǎng)江科學(xué)院碩士學(xué)位論文裂隙巖體滲流應(yīng)力耦合機(jī)制研究及突水?dāng)?shù)值模擬姓名：孫玉杰申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：巖土工程指導(dǎo)教師：鄔愛(ài)清;張宜虎20090601ABSTRACTWiththerapiddevelopmentofChina’ssocial-economy,large-scaledevelopmentofwaterresources,therapidexpansionoftherailwaytrafficandtheriseofthenuclearpowerindustry,therock-relatedmacro-engineeringareincreasingprog
2、ressively.Thewater-rockcouplingeffectofthefracturedrockmassesinthehighpressureandcomplicatedloadingisaverycomplicatedprocess.Thereforetheanalysisresearchofthegroundwater’sactivityaswellasthecouplinganalysisresearchofseepageandstressinfracturedrockmasseshasbecomeacommonconcerntothegeotechn
3、icalengineeringprofessionbutalsoaveryvaluedandcomplicatedtaskwithatheoreticalstudyandpracticalapplicationbackground.Thispaperadoptssuchmethodsastheoreticalanalysis,numericalsimulationandengineeringapplicationtoinvestigatetheseepagebehaviorinfracturedrockmasses,themechanicalpropertiesoffra
4、cturedrocksmassesafterexcavationaswellasthecouplingofstressfieldandseepagefieldinfracturedrockmassesroundlyandthoroughly.Basedontheexistingstudiesinthecorrelationalresearchbothathomeandabroad,themajorresultsareasfollows:1.Theexistingachievementsandresearchadvancesoftheseepagebehaviorofthe
5、fracturedrockmasses,themechanicalpropertiesoffracturedrockmassesafterunloadingaswellasthecouplingofstressfieldandseepagefieldinfracturedrockmassesandsuddeninflowofwateraresummarized.Theproblemsexistinginitatpresenthavebeenputforward.2.Theseepagetheoriesandmethodsofthefracturedrockmass,bas
6、ingonthedistinctelementmethodareexpatiated.UDECbasedontheDistinctElementMethodisusedtosimulatethefreesurfacefluid.3.Thefundamentalseepagetheoryofthefracturedrockmassesandthenetworksimulationofthestructuralplane,basedonMonte-Carlotechniqueareintroduced.DiscreteFractureNetworksaregeneratedt
7、hroughmyownprogram.BasedontheDFNmodel,theseepagefieldinfracturedrockmassesandthemechanicalpropertiesoffracturedrocksmassesafterexcavationarenumericallysimulatedbyUDEC.4.Thecouplingtheoryofstressfieldandseepagefieldinfracturedrockmassesareintroduced.Theroleoftheseepa
