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1、河北工程大学硕士学位论文AbstractChina'scoalresourceshavebeenexploitedasalargescaleforalongperiod,theminingconditionswhicharesuperiorlycoalresourceshavebeenclosetoexhausted,theexploitationofthoseburieddeep,existinginpoorconditions’coalresourceshasbecomeaninevitabletrendofcoalmining,whichmeansthatthefutureofth
2、eminingworkwillbeintheenvironmentofwhichburieddeep,uplandstressandpoorconditionsofthesurroundingrock.Atpresent,China'scoalminingdepthisincreasingasaspeedof8~12mperyear,andintheeasternpartminethespeedis100~250mevery10years,alotofminewillenterintothe1000~1500mdepthinthenext20years.Therefore,thesupp
3、ortingworksinburieddeep,poorconditionsofrockandhighstressundergroundhasbecomethekeytodeepmining.Inthispaper,asthebackgroundofYun-JialingMine,describedtheYun-JialingMineexploitintothedeepmining,usingboltingtechnologyin2-levelSoft-brokenrocksubstation,pumphouseandotherlargecross-sectionchamberforsu
4、pporting,inordertoachievesafetyinproductionandsmoothtransition.First,researchthelargecrosssectionchamberinSoft-brokenRock’sdeformationcharacteristics,failuremechanismandchamberrock’sarch,sidewallandbottom’smechanicalproperties.Second,combinedYun-JialingMine2-levelsubstation’sgeologicalconditionsa
5、ndrockcharacteristics,analyzedandsummarizedtheproblemsinthelargecrosssectionchamberinSoft-brokenRock’ssupportingofYun-JialingMine,proposedthesupportingdesignroomkeyprinciplestobefollowedinthelargecrosssectionchamberinSoft-brokenRock’ssupportingofYun-JialingMine,onthisbasis,developedforthelargecro
6、sssectionchamberinSoft-brokenRock’ssupportingofYun-JialingMine,suchasThepressreleasesupporting,Locationgroutingand
Anti-hangingarchforFloorheaveGovernance.Basedontheabove-mentionedprinciplesandmeasures,designedtheboltingprogramforYun-JialingMine2-levelsubstation,andusedthenumericalsimulationsoftw
7、areFLAC3Dtoestablishthenumericalsimulationofsubstationmodelforboltingstructuralsystemoftheboltingprogram’sstudysuchaschamberdeformationanddisplacement,inordertotesttheboltingprogram’srationality.Finally,puttheboltingpr
