大采高回采巷道保护煤柱局部变形特征监测分析.docx

大采高回采巷道保护煤柱局部变形特征监测分析
Abstract
Inrecentdecades,miningengineeringhasundergonesignificantdevelopmentduetotheincreaseincoalminingoperationsaroundtheworld.Thepresentstudyinvestigatestheprotectionofcoalpillarsduringtheprocessoflargecoalseammining.Amonitoringandanalysisstrategyfordealingwiththelocaldeformationcharacteristicsofcoalpillarswasdevelopedforthesakeofminingsafety.Adetailedexaminationoftheresultsispresentedalongwiththeexplorationofpossiblemethodsforeffectivelymonitoringandpreservingtheintegrityofcoalpillarsinlargeseamminingoperations.Thesefindingsareexpectedtocontributetothesustainabilityofminingoperationsbyprovidingdeepinsightsintothestructuralbehaviorofcoalpillarsduringminingactivities.
Introduction
Theminingofcoalistheprocessofextractingcoalfromundertheearth’ssurface.Duringthecoalminingprocess,manyproblemsandchallengesarisethatmustbedealtwithtoensurethecontinuationofminingoperations.Oneofthemostsignificantconcernsistheprotectionofcoalpillars.Coalpillarsareformedasaresultoftheextractionofcoalfromacoalseamandareessentiallyasupportstructurefortheoverlyingstrata.Theyareconsideredtobeoneofthemostimportantstructuralelementsoftheminingprocessastheyensurethestabilityofthemineroof.
Inrecentyears,largeseamminingmethodshavegainedattentionincoalmining.Theuseofthesemethodsisjustifiedbytheirhigheryieldincomparisontotraditionalminingmethods.However,theextractionofcoalfromsuchseamsbyconventionalminingmethodsposesasignificantthreattothestabilityofcoalpillars.Asaresult,appropriatemeasuresmustbetakentoensurethatcoalpillarsareadequatelyprotectedduringtheminingprocess.
Theaimofthisstudyistodevelopamonitoringandanalysisstrategyfordealingwiththelocaldeformationcharacteristicsofcoalpillarsduringlargecoalseammining.Thispaperpresentsananalysisofthedeformationcharacteristicsofcoalpillarsduringlargeseamminingoperations,aswellasmethodsforeffectivemonitoringandpreservationofcoalpillarintegrityduringtheminingprocess.
DeformationCharacteristicsofCoalPillars
Coalpillarsplayacrucialroleinensur