滇藏鐵路金沙江河谷段工程地質(zhì)條件研究.pdf

1、中國地質(zhì)科學(xué)院碩士學(xué)位論文滇藏鐵路金沙江河谷段工程地質(zhì)條件研究姓名：郭長寶申請學(xué)位級別：碩士專業(yè)：地質(zhì)工程指導(dǎo)教師：張永雙20070120中國地質(zhì)科學(xué)院碩士學(xué)位論文ABSTRACTTheYunnan幣betrailwayisoneofthemostimportantplanningrailwaysofChinaAndithasbeenapartodtoseveralsubsectionsandeachsubsectionwillbeco

2、nstructedindividiualyTheJinshaRivervalleywhichisontherouteoftheLijiang—ShangrilasubsectionandthegeologicalconditionsarecomparativelycomplexHowto州dgingoverandwheretolocatethebridgearcthekeyissueswhichrestricttherallwayori

3、entationTherefore，thisstudyselectstheJinshaRivervalleyasthestudyareaandappliesmultisubjectstheoriesandmethodstoasseSStheJinshaRivervalleygeologicalconditionsandanalysesthcslopestabilityofthepotentialbridgelocationaswellB

4、asedontheanalysisoftheregionalgeologicalbackgroundthispaperreviewsthefeaturesoftheneotectonicmovementsandmainactivefaultsinthestudyareaandrevealsthattheZhongdianfaultandtheLongpanQieohoufaultare協(xié)emainactivefaultswhichtos

5、omeextentaffecttheJinshaRiverBridgeproject11他analysesofthetopographyfeaturesgeologicalandhydrogeologicalconditionsandtheGeohazatdsdistributionofthewholestudyareaindicatesthattheengineeringgeologicalconditionsoftheXialuoy

6、uBridgeoeattheShangxiakouoftigerleapinggorgeisrelativebetterThispaperlucubratethestabilityofthehighslopesofthevalleyandtheLengducomplexslopebodywhichaffectthebridge嘶Engineeringgeologicalanalysisandtheelasticplasticfinite

7、elementsimulationresultsindicatethat：1)ThereisplasticzoneintheIeftvalleybottomslopewiththeeffectsofgravityandearthquakeandthereissmallplasticargoatthelowerpartoftherightvalleyloosedebris；2)Whentheportentialderwnraverre∞r(nóng)

8、voirwereonthehighwaistleveltheplasticloeationeoncon懈intheIeftsideatthevicinityofthesamehightofthewaterlevel111eLeogducomplexslopebodycanbedividedintothreepaffs：theslopesectionfromtheShan鰣LaNo3higIlschooltotheestuarythean

9、cientlandslidesectionfromChangshangt0HezanandthebedrocksectionattheNortheastofShibuge111eauthorcalculatesandanalysesthestabilityoftheancientlandslidesectionfromChangshengtoHezanusingtheSwedishslicemuthodJanbumethodandthe

10、simplifiedBishopmethod，withtheconditionsofthecurrentstatus，carthquakewaterstorageandrainfallI矗equantitativecalcdationresultsshowthattheancientlandslidesisstableandofhigllreliabilitywiththesafIycoefficientof1257一1413incur

11、rentstatus，andthestahilitydecre笛etoO92虬1043and0960一13l5undertheconditionofrainfalland7—9degreeearthquakewhilenlesaltycoe最cientturnto0861to0，960underthecombinedofearthquakeandrainfajlandthismeansunstabi|ityInordertovalida

12、tetheabovementionedresultstheslicenumaricaJsolutionmethodandtheMonteCatlosimulationmethodwerecombinedtocalculatethestabilityoftheChangshengHezanancientlall出lideTheabovecoleulationandanalysisrevealthattheselectedIocatlono

13、fXialuoyuBridgeisappropriatewithrespecttotheen百neeringgeologicalconditionsInordert0guidetherailwayplanningandengineeringgeologicalsurveythispapercarryouttheellgl’neeringgeologicalconditionzonationassumedtheJinshaRiverBri

14、dgelocationweredecided，ApplyingAnalyticalHierarchyProcessandGIS，whichbaseontheplatformofMapGIS67andArcGIS91Andterrainslopeengin∞r(nóng)inggeologicalrockgroups，slopestructure，theGeehazardsdistribution，earthquakepeakacceleration

15、activefaulttinyphysiognomyhumanactivityrainfall(maindifferencesinvertical)andthedistancetothedraingeswereselectedasindicesandquantifiedwithexpefcopinionsforthezonatiooAccordingtotheGIScalculationthestudyatgaisdividedinto

16、4engineeringgeologicalclasses：besLbettermiddleandpoorAccording|0thezonationtheXialuoyuBridgemainlybridgeoverthebetterengineeringgeologicalareaandthemiddleengineeringgeologicalareawhichprovesthattheformeranalyaisandcal吼na

17、ti013a北reasonableThetechniquesandmethodelegyusedinthisstudycanbereferencedwhenstudyingthesimilarengineeringgeologicalsubjeclsinotherregionsKeyWords：Yunnan—TibetRailwaytheJinshaRiverValleyHi|ghSlope，ComplexSlope，Engineeri