贵广铁路坪山隧道岩溶涌突水预测及危险性分级评价

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1、西南交通大学硕士学位论文贵广铁路坪山隧道岩溶涌突水预测及危险性分级评价姓名：方振华申请学位级别：硕士专业：地质工程指导教师：王鹰20090401西南交通大学硕士研究生学位论文第1l页AbstractThettmmelwatergushingandburstingarethemosttypical，significantformofgeologicaldisastersintheprojectsofkarsttunnel．Thethesissetupapredictionsimulationsystemoftunnelwatergushi

2、ngandbursting，predictedthepossiblegushingparagraphandwaterinrushpointsintunnelconstruction，onthisbasis，theauthorhavedonegraderesearchforthedangeroftunnelwatergushingandbursting，thusfurtherevaluatedtheimpactoftunnelwatergushingandburstingontheenvironmentandproject，propose

3、deffectivepreventionandtreatmentmeasures，ithasguidingsignificanceforgeologicaldisasterpreventionandtreatmentoftunnelwatergushingandbursting．ThethesisselectedPingshantunnelconstructionofGuiguangexpressrailwayastheresearchbackground．Throughtheanalysisanddiscussionofthemain

4、controllingfactorsoftunnelwatergushingandbursting，theresearchofthetunnelareawatergushingandburstingiscarriedoutinsubparagraph．Onthisbasis，theforecastingcalculationofsubparagraphofthetunnelwaterinflowistakenbytraditionalandclassiccalculationformula，thencombiningwiththecon

5、tributionofeachkarstwatersystemtothetunnelgushing，finishedtheforecastingofwaterinflowandwatergushingsectionofthetunnel．Inthispaper，onthisbasisofdepthanalysisofthestudyareakarsthydrologicconditions，throughtheanalysisoftheinfluencingfactorsofthetunnelareakarstdevelopmentch

6、aracteristics，selectedrocksoluble，geologicalstructurefactors，surfacewatercatchmentconditions，chemicalcharacteristicsofgroundwaterandtherelationshipbetweentunneldepthandgroundwaterlevelcomposingthepreliminaryevaluationindexsystemoftheriskofkarsttunnelwatergushingandbursti

7、ng。predictedthepartsofthetunnelwhichprobablyhappenwatergushingandburstingdisasterintheprocessoftunnelexcavation，gradingevaluatedthedegreeofriskofthedifferenttunnelsectionswhichprobablyhappenwatergushingandburstingdisaster，andfurtherevaluatedthetunnelprojectanditsimpacton

8、theenvironment．Engineeringtreatmentisproposedinthispaper，usedtoguidethetunnelconstructionandensuretheco