急斜特厚煤层综放工作面回采巷道支护技术的研究

急斜特厚煤层综放工作面回采巷道支护技术的研究

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时间:2019-03-08

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1、Subject:StudyOnTheSupportTechnologyOfRoadwaysInFullyMechanizedCavingFaceInSteepAndThickCoalSeamSpecialty:MiningEngineeringName:WangJian(Signature)Instructor:HuangQingXiang(Signature)WangNingBo(Signature)ABSTRACTUrumqiminingareaistheoldestandlargestcoalproductionba

2、seproductioninXinjiang,over30layersofdifferentthicknessanddifferentspacingofsteepseamsexiststhere,themethodoflargesegmentandtop-coalcavingismainlyused,thischaracteristicsofcoalseamoccurrenceandproductionmethodledtobethecomplexconditionofroadwayduringrecovery.There

3、fore,inordertoensurethedevelopmentoftop–coalcavingwithalargesteepsectioninsteepandthickseam,thesupporttechnologyofroadwayinsteepandthickcoalseamneedstobesystematiclystudied.Accordingtothecharacteristicsofgeologicaloccurrenceandsub-levelcavingminingconditionsinstee

4、pandthickcoalseam,throughtheinvestigationoftheroofstructureparametersofactualroadways,otherengineeringgeologicalconditions,theparametersofconstructionanddestructionofroadway,stabilityrelationshipbetweenroofandfloor,thedamagelawsofroadwaysaredetermined,thephysicala

5、ndmechanicalpropertiesofsurroundingrockaregotbyusingtheoreticalanalysisandcoalandrockmechanicsexperimental.Thedeformationrulesofroadwayinsteepcoalseamareresearchedbythesimilarsimulation,numericalsimulation.Monitoringon-siteandtheoreticalanalysis,areusedtoresearcht

6、hechangeofroofdisplacementandstress,understandingtheimpactoffactors,specificmeasurestoaddresstheseissuesareproposed.Practiceshowsthat,theintegratedapplicationoftechnology,"beltanchor+anchor"combinedsupport-basedandendbracketsupplementedsupporting,achievesasuccessi

7、nengineering.The"beltanchor+anchor"jointsupporttechnologyisthemostreliabletechnicalsolutions.Theresultsprovidesabasissupportingsecurityforsupportingsimilarconditionsofroadway,whichhasawiderangeofapplicationvalue.西安科技大学工程硕士学位论文Keywords:Steepandthickcoalseamentrysup

8、portingtechnologymonitoringon-siteThesis:ApplicationStudy2目录目录第一章绪论.....................................................................................

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