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1、西華大學(xué)碩士學(xué)位論文錦屏高邊坡穩(wěn)定性數(shù)值分析研究姓名：王合乾申請學(xué)位級別：碩士專業(yè)：@指導(dǎo)教師：蔣華@錦屏高邊坡穩(wěn)定性數(shù)值分析研究IIAbstractWithavarietyofgeotechnicalengineeringconstructionincreasinglslidehazardshasbecomememeoutsting.Thenumberofhighslopelargespancavernsinrecentyearsha

2、veoccurredinprojectsofdifferentsizesofrockcollapseaccident.Whenthelslideoccursit’snothinderingtheprojectconstructionusebutcausingsignificanteconomiclossescasualties.Sincethelastcenturyintheearly80shighslopestabilitystudi

3、eshaveattractedextensiveattentioninmanyaspects.Studyoftheslopestabilityassessmentpredictionhasbecameafundamentalproblemalsobecameoneofthemostdifficultthemosturgenttosolvetopics.Inthispaperbasedonthefmerresearchresultshav

4、ebeencombinedwiththeJinPinghighslopeengineeringofexcavationsupptingfiniteelementanalysismethodwasusedtoanalysisthestabilityofhighslopeafterexcavation.Mainlywkasfollow:Accdingtothefmerstudiestheengineeringgeologicalcondit

5、ionsthemajimpactfactsoftheslopestabilitywithintheareaofJinPingHyowerStationdamweredescribedbasedonthestrainenergyminimumpotentialenergyprinciplethefiniteelementmethodofthebalanceequationelementanalysistheintegralanalysis

6、werediscussedthelargegeneralpurposeanalysissoftwareANSYSwastoanalyzetheleftbankhighslopestabilityanalysisofJinPingHyowerStation.Thefiniteelementmodelbuildingdivideofstrongweatheringzoneweakweatheredzonedeepunloadingzoneu

7、nloadingzoneaswellasboundaryconditionwerediscussed.ObtainedanumberofimptantconclusionsofthestabilityofJinpinghighslopeunderspecialgeologicalconditionsinexcavationprocess:thestressfieldofslopesurroundingrockmainlybytheSel

8、fweightstressstressdistributionismainlyverticaldistributionstressdistributionfromthesurfacetothedeeprockgraduallyincrease.Thestressofcontrolledthedepthofslopestabilityscopesuchastheverticalstressthehizontalstressthemaxim

9、umprincipalstresstheintermediateprincipalstressminimumprincipalstressetc.arethemaincompressionstress.Themaximumtensilestressappearedatthelocationoftheuniversalplatfmfthetopcnerofslopesurfacearea.Thesafetyfactinmaximumten

10、silestresszoneisgenerallylowinsomeplacesevencloseto1.0Therefeintheslopeoftheexcavationprocessmusttakethenecessaryeffectiveslopesupptmeasuresotherwiseeasilyoccurengineeringrockmasscollapseaccidentimpedetheprojectsconstruc

11、tionusecausesignificanteconomiclossescasualties.Thenmakeuseofothergeneralpurposefiniteelementsoftwareplussupptingstabilityanalysisofslopeaftertheuseofstrengthreductioncoefficientmethodtheresultsshowthattheanalysissupptin

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