磽磧水電站庫區(qū)不同松散堆積體邊坡坍岸模式及范圍預(yù)測.pdf

1、西南交通大學(xué)碩士學(xué)位論文磽磧水電站庫區(qū)不同松散堆積體邊坡坍岸模式及范圍預(yù)測姓名：劉娟申請學(xué)位級別：碩士專業(yè)：地質(zhì)工程指導(dǎo)教師：胡卸文20100401西南交通大學(xué)碩士研究生學(xué)位論文第1|頁AbstractTherearedifferentkindsoflooseaccumulationslopesinreservoirareaofQiaoqiHydropowerstationIntheperiodofwaterstorageandwate

2、rdrainage，thedifferentlooseaccumulationslopeshadhappeneddifferentbankslumpInthisthesis，takenthe釁|accumulation，鲅晷accumulationand籃“商accumulationasthemainobjectsofstudyinfieldsurveywehadmeasuredtheunderwaterstableslopeangle

3、ofdifferentlooseaccumulationsduringthemedium—termofreservoirrunningAndwehadtakenthesamplestodograinsizecompositionanalysisondifferentlooseaccumulationslopesWeadoptthefieldinvestigationandtestanalysistostudythebasicgeolog

4、icalcharacteristics，andanalysedtherelationshipbetweenunderwaterstableslopeangleandgrainsizecomposition，atlastwegottheexpressionoftherelationshipThenwestudythemodeofbankslumpofthreelooseaccumulationslopes，andadoptedtwomet

5、hods(STABandGEOSLOPESlopeStabilityAnalysis)searchingbyarcpotentialslipsurfacetocalculateandanalyze，anddeterminedtheunstableslipsurfaceofnatureandrainstormstateunderthenormalwaterlevelof2140mandplungedto2135mwaterlevel，SO

6、wehadgettheareaofbankslumpAtthesametime，basedonstableslopeangleonwaterandunderwatermeasuredinfield，weadopteddiagrammaticalmethodtopredicttheareaThisstudyfoundthat，aSgrainsizechangedfromcoarsetofine，theunderwaterstableslo

7、peanglechangedfrombigtosmallondifferentlooseaccumulationslopesThegrainsizecompositionandtheunderwaterstableslopeanglehaddefinitecorrelation，andwesetuptheexpressionBaSedontheexpression，wecaneasilymeasurethegrainsizecompos

8、itiontodeterminetheunderwaterstableslopeangle，SOthatwecanquicklypredicttheareaofbankslumpbydiagrammaticalmethodInreservoirareathemodeofbankslumponQ3fglaccumulationslopewascollapse，andon鲅昏accumulationandQ。7～1“。accumulatio

9、nslopethemodeWasslidingWehadadoptedthreemethodstopredicttheareaofthereservoirbankslumpAtlast，wecomparativelyanalysedthethreecalculationstodeterminethefinalareaofslumpshorekeywordsReservoirbankslump；looseaccumulation；unde