不衬砌有压引水隧洞成洞条件及围岩稳定研究

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1、重庆大学硕士学位论文不衬砌有压引水隧洞成洞条件及围岩稳定研究姓名：侯龙申请学位级别：硕士专业：地质工程指导教师：刘东燕20070420重庆大学硕士学位论文中文摘要适合本文背景工程所采用的有压引水隧洞不衬砌的条件。所得结果具有典型性，可为具体的工程实践活动提供一定的参考。关键词：有压引水隧洞，衬砌，围岩稳定，耦合作用，数值模拟Ⅱ重庆大学硕士学位论文英文摘要ABSTRACTInthehydraulicengineering，thecirculateappearanceofdiversiontypepressuretunneltodirectlyinfluencenormalusagea

2、ndeconomicbenefitofthewholeengineering．Thediversiontypepressuretunnelbelongstolonglinestructure,itwillthroughdifferentsectorintheprocessofexcavationandvariousgeologicenvironmentconditionwillbehave．Itrequeststhatwecombinetheenvironmentwhichdiversiontypepressuretunnelplacetoanalysisthesurroundin

3、grock,toinvestigateit’sappe壮锄ccandtakeittothereferenceforwhetherOrwhatkindofliningWewillappliedto．It'sdifferentbetwcelldiversiontypepressuretunnelandwaffletunnel．Inregardtoitsusagefunctionamongthecirculatepcri,xioftunnel，anyisgoodinthepropertyandinsidethesimpleenvironmentofrockmfl．船fortunnel，a

4、lsothecouplingeffectwillnotbreakthesurroundingrockandthepermeationunlikelyinfluencestogeneratedeetrieityusage。thenWecanchooseunlinedforthetunnel’sCROSSsection．Underthepremisesatisfiedtonormally1l哦thiskindofperfommccoutputperformanceisconsiderable．Currently,domesticandinternationalstillnotmatur

5、etotheresearchesofthisaspect，it’sseldomtoseetheresearchesofwhetherwewillsetliningtothetunnel．Thispaperfromcommencetoafewaspectswhichhadalreadypressedthediversiontypepressuretunnelsurroundingrockstabilitytoresultintoinfluencemorloandgreatly,investigatetheirinfluenceeffectproduce．usethisasthetun

6、nel'scrDssSI矧IJOllliningOrnotofreference．Concretedeviceandrelatedconclusionareasfollows：(1)Temporarytakenoaccountoftheactionofgroundwater,solvethetangentialstressvaluesofkeypointsinthediversiontypepretl$1．11'etunnel’ssurroundingrock．CarryOnE1．comparisonwithrockmassstrengthandinitialcertainthew

7、orkconditionofthesottwaresimulationsphere．Imitatetttnnel'sexcavationlateron,thencomputingthedisplacementvalueandcarryOncontrast晰ththebiggestallowablestrainvalue,therefore,we啪makeSurethestabilityofthesm'mundingrockwhichisunderthedifferen