大型地下硐室群圍巖穩(wěn)定性數(shù)值模擬分析——以金安橋水電站右岸硐室群為例.pdf

1、ⅢⅢ|J|1l』|I|JJJIl|Ⅲ|11|Ij|』l_|lI】JⅢY1525162分類號：P6421071027叫104003諼步犬海工程碩士學(xué)位論文大型地下硐室群圍巖穩(wěn)定性數(shù)值模擬分析一以金安橋水電站右岸硐室群為例楊興鋮導(dǎo)師姓名職稱張駿教授李力教授級高工申請學(xué)位級別工程碩士學(xué)科專業(yè)名稱地質(zhì)工程論文提交日期2007年2月20日論文答辯日期2007年3月31日學(xué)位授予單位長安大學(xué)答辯委員會主席陳志新學(xué)位論文評閱人AbstractThes

2、tabilityofLongspanundergroundchambersdirectlyaffectthesitechoice，excavatjon卸dconstructionofhydroelectricpowerstations，playanimportantroletothesafetyThey啪alsothe咖咖ofgeologyevaluationonhydroelectricpowerprojectTheundergrou

3、ndworkshopofJinganbrigehydroelectricpowerstationisexpectedtobuildinthemountainoftherightpivotare&BalldingFau崦EPstratumsurfaceunloadfissureandstrongearthstressarevisibleeverywhereAlloftheseconditioIlsbecomeobstacl％andhave

4、agreataffectonthestabilityexcavatesafetytimelimitandraftonaleconomvoftheundergroundchamberTheyalethekeyproblemsBasedonthesitegeologicexaminationandrock&soilmechanicstrial，thispaperdisclosesthelithologiccharacteranalysest

5、hetestparameterandprovesupthedistributionofF2&F3FauItspaJtbypartThesurroundingrockoftheundergroundworkshopalerationallyclassedbyRMRtaxonomywhichCanofferreasonstothestabilityanalysesandestimateandcallgivesomesuitableadvic

6、esonunde礓印undchamberexcavateandtimberingThispaperemphasizesonthePD218andotherstulmswhichagedetailedrecordedandsurveyedTheFaultsandjoiatsateespeciallyanalyzedandtheirupgrouwthtrendanddistributingstatusaremort／tot／rigmeasu

7、redThe3dimensiongeologicconfigurationmodelismadeaccordingtothespaceconnectingpositionbetweentheFaults&jointsandundergroundchamberFirstthepapercomprehensivelyanalyzesthepossiblefailuretypeoftherocksurroundingtheundergroun

8、dchambergivesareasonableestimationofstabilitySecondlythedeformationandstabilityofthesurroundingrockhavebeennBmericalsimulacedbyFLAC3Dsoftwarethedistributionofstressandstrainofthesurroundingrockhavebeenexplored，thestressc

9、oncentrationandunsP絡(luò)nfailureareahavebeendiscoveredAttheendofthepaper，consideredtheeffectofsizeofthedeformationandfailureofthesurroundingrockthestabilityoftheundergroundchamberhavebeenestimatedpartbypart。andtherelatedproc