資源描述：
《瞬態(tài)瑞雷面波法評價巖溶路基注漿效果影響因素分析》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、萬方數(shù)據(jù)西南交通大學(xué)碩士研究生學(xué)位論文第1I頁AbstractThedensityandbearingcapacityofrockwillbeimprovedbykarstroadbedgroutingreinforcement．Thegroutingmethodcanalsoreducegroundwaterpenetration．Theappropriatetestmethodsshouldbechoosedtoevaluatewhetherthegroutiongeffectcomplywiththerequirements．TransientRayleighWavemethodhas
2、beenwidelyusedintheGroutingeffectdetection．However，duetoengineeringgeologicalconditongs，thedetectionaccuracywillbeaffectedtosomedegree．Analysisoffactorsandevaluationofthesefactorshaveimportantengineeringsignificances．Andthefindingsofthestudyareasfollows：(1)AnalysisofRayleighwavepropagationcharacter
3、isticsofGuizhouandYunnanspecificwordsiteofShanghai-Kunming，theRayleighwavevelocityunderdifferentdepthsCanbeobtained．Comparationofthevelocityofthe”specialrailwayroadbeddesign”standard，theresultshowsthattherearedifferenterrorsunderdifferentgeologicalconditions．(2)Usingthenumericalsimulationmethodcalc
4、ulatetheeffectionofkarstroadbedgroutingbyTransientRayleighWave．UsingnumericalsimulationsoftwareFLAC3Dcalculatesthedetectioneffectofdifferentcoverlayerthickness，basedcladdinginterfaceandstratadip．Theresultsshowthat，theaccuracyofdetectionisaccuratewhenthecoverlayerthicknessfrom0to5metre．Thereisanerro
5、rdetectionresultwhenthecoverlayerthicknessfrom5to10metre．However,TransientRayleighWaveCan’tbeusedwhenthecoverlayerthicknessmorethan10metre；Thedifferentcladdinginterfaceshavedifferenteffectsonthedetectresults．Whentheshapeisirregularortheinclinationangleoflessthan30。，thedetectionerrorissmall，andwhent
6、heangleexceeds30。，theerrordetectionresultswillincreasewimtheangleincreases；Theerrordetectionalsowillincreasewiththeangelofstratadipincreases．(3)AcorrdingatalargenumberofthedetectionofGuizhouandYunnanofShanghai—Kunming，Canincludethattheeffectionofthedetectionresuletwillbedifferentunderdifferentgeolo
7、gicalconditions．Establishamulti—levelfuzzycomprehensive萬方數(shù)據(jù)西南交通大學(xué)碩士研究生學(xué)位論文第1II頁evaluationsystem，wecangetTransientRayleighWaveMethoddetectkarstroadbedevaluationsystembyvaryingdegreesofinfluencequantify．Keywo
