典型不良地質條件下隧道圍巖穩(wěn)定性分析及對策研究.pdf

1、重慶交通大學碩士學位論文典型不良地質條件下隧道圍巖穩(wěn)定性分析及對策研究姓名：郭乾申請學位級別：碩士專業(yè)：橋梁與隧道工程指導教師：程崇國胡居義20100501ABSTRACTWiththeconstructionofinfrastructureinourcountrythedesignofhighwaytunnelandthetechnologyofconstructionhavedevelopedrapidlyTherearemorea

2、ndmoretunnelprojectsathomeanddomestic；thelengthofthetunnelbecomeslongerandlonger；thespanoftunnelconstructionbecomeslargerandlarger；thedepthoftunnelbecomesdeeperanddeeperMeanwhile，thegeologicalconditionsthatencounterdurin

3、gtunnelengineeringbecomemoreandmorecomplexAstunnelengineeringisakindofundergroundwork，peoplecannotknowaccuratelytheconditionsofengineeringgeologybeforehand；onlybyexistingmeansoftestsCanpeoplegainthebasicknowledgeofgeolog

4、icalinformationsuchasgeologicalenvironmentTherefore，itbringsaboutgreatblindnesstothetunneldesignandconstructionandoftenresultsinunexpectablecollapse，rooffallandwaterburstduringtheconstructionOnceanaccidenthappens，itsligh

5、tconsequencesmayincludeeffectingconstruction，damagingconstructionequipments，increasingcostofengineeringandlosingstatepropertyTobemoreserious，itmaycausetremendouscasualtiesWhat’Smore，thehandlingjobisdifficultaftertheaccid

6、entandproduceseverelosttoeconomyandconstructionperiodThispaperisbasedontheChalindingTunnelinGuangWuHighwayGuangdongProvinceThetunnelhasanextremelyundesirablegeologicphenomenon，suchaskarstandfaultzoneInordertoavoidorreduc

7、eaccidentslikecollapse，offertechnicalguidancetoundesirablegeologicalphenomenonwarningsystemandtreatmentplan，itisnecessarytodevelopmentthestudyofstabilityoftunnelsurroundingrockandconstructionstrategiesThefollowingpartsar

8、emainlyon：①Byanalyzingtheinfluenceofundesirablephenomenontothestabilityofconstruction，calculatethetypeandcharacterofpotentialaccident②Basedonthedataanalysisofsoftgroundbenchmethod，optimizethelengthofbenchandsizeofcoresoi