大埋深破碎顶板煤层切顶卸压成巷技术研究.docx

大埋深破碎顶板煤层切顶卸压成巷技术研究
Title:TechnicalResearchontheTopCoalCavingMethodforDeepBuriedCoalSeamwithFracturedRoof
Abstract:
Thetopcoalcavingmethodfordeepburiedcoalseamwithfracturedroofhasbeenwidelyappliedinundergroundcoalminingduetoitshighrecoveryrateandsafetyadvantages.Thispaperaimstoprovideanin-depthstudyofthetechnicalaspectsinvolvedinthisminingmethod.Theresearchincludestheanalysisoftheproblemsfacedduringthetopcoalcavingprocess,thefactorsaffectingthestabilityofthefracturedroof,andthemeasurestoimprovetheoverallefficiencyandsafetyoftheminingoperation.
1.Introduction
1.1Background
1.2Objectives
2.TopCoalCavingMethod
2.1DefinitionandPrinciple
2.2AdvantagesandLimitations
2.3CaseStudiesofTopCoalCavingMethod
3.AnalysisofProblems
3.1RoofFracturingandStrataMovement
3.2CoalCrushingandExtractionEfficiency
3.3GasEmissionandVentilationChallenges
3.4GroundSubsidenceandSurfaceImpact
4.FactorsAffectingRoofStability
4.1GeologicalandGeotechnicalConditions
4.2MiningParametersandPractices
4.3MechanicalPropertiesofOverlyingStrata
5.MeasurestoImproveEfficiencyandSafety
5.1RoofSupportDesignandSelection
5.2CoalFragmentationandExtractionTechniques
5.3EnhancedVentilationandGasControl
5.4MonitoringandControlSystems
5.5TrainingandSafetyProtocols
6.CaseStudies
6.1SuccessfulImplementations
6.2LessonsLearned
7.Conclusion
7.1SummaryofFindings
7.2ImplicationsandFutureResearch
Byconductingacomprehensiveanalysisofthetopcoalcavingmethodfordeepburiedcoalseamswithfracturedroof,thisresearchaimstoprovidevaluableinsightsforminingcompaniesandresearchersinvolvedintheundergroundcoalminingindustry.Thefindingsandrecommendationsinthispapercancontributetoimprovingsafetyandproductivityinthisminingmethod.
Keywords:topcoalcavingmethod,fracturedroof,coalcrushing,efficiency,safety,ventilation,supportdesign,geotechnicalconditions,monitoring