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1、西南交通大學(xué)碩士學(xué)位論文大相嶺高速公路隧道巖爆預(yù)測(cè)研究姓名：陳景瑜申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：地質(zhì)工程指導(dǎo)教師：白志勇20090301西南交通大學(xué)碩士研究生學(xué)位論文第lI頁(yè)AbstractTheDaxiangLingTunnelwhichisconstructing，isthecontrolledmajorprojectofhighwayfromYa’allCitytoLuguCounty．Becauseofthecomparativelycomplexgeologicalconditionwhichthetunnelislainin,andist
2、heexistenceofstressregionofuplandtherockbuntmaybeoneofthemainengineeringgeologicalproblemofthistunnel．ThisthesiscombinescloselywiththeengineeringpracticeofDaxiangLingTunnel，choosesthestudyofrockbuntproblemasthemainlineandmakemorecomprehensivecasestudyfortheundergroundenginee
3、ringroadblock．StudycontentsandconclusionsacquiredinthisthesisaremainlyincludedaSfollows：(1)Theengineeringgeologicalenvironmentalconditionsofstudyareaexplicated．Studytheregionalgeologyandtheregionalstability，landformconditions，stratalithologyandtheengineeringgeologicalpetrofa
4、bric，geologicalstructureanditsstressfieldevolution，thehydrologicalconditionsandsuchinthestudyarea．(2)Thespecialstressstatusofrockmassintheprojectareaareascertained，andthesystematicrecognitionofdevelopmentaldistributionrulesofgroundstressinthewholerockmassoftunnellingworksare
5、obtainedthroughfieldandindoortesting．ResearchofthisthesishasshownthemeandirectionofmaximumprincipalhorizontalstressisN550wandthepreferredorientationofprincipalhorizontalpressureisN63。W．(3)Thelinearrelationislyinginhorizontalpressureandgeostaticstresswiththeincreaseofburiedde
6、pthoftunnelaccordingtoanalyzingandcalculatingthedrillingdata；andthecorrespondingequationoflinearregressionisbuiltinordertocalculatetheprimarystressfieldofthetunnel．(4)Themaximumtangentialstressvaluesoftunnelwallisacquiredthroughnumericalcalculationand3D—sigmafiniteelementana
7、lysisoftunnelexcavation．(5)Theprobability，sectionandintensityofrockburstemergingpossiblyduringtheDaxiangLingTunnelexcavationthroughapplyingthetwomethodssuchaspredictionmethodofstress-strengthratioandfuzzycomprehensiveevaluationonthebasisoftheforegoingresearch．Keywords：Daxian
8、gLing；highwaytunnel；rockburst；prediction西南交通大學(xué)學(xué)位論文版權(quán)使用授權(quán)書(shū)本學(xué)位論文作者完全了解學(xué)校有關(guān)保留、
