Advances in Coal Mine Ground Control PDF
Preview Advances in Coal Mine Ground Control
Advances in Coal Mine Ground Control Thispageintentionallyleftblank Woodhead Publishing Series in Energy Advances in Coal Mine Ground Control Edited by Syd S. Peng WoodheadPublishingisanimprintofElsevier TheOfficers’MessBusinessCentre,RoystonRoad,Duxford,CB224QH,UnitedKingdom 50HampshireStreet,5thFloor,Cambridge,MA02139,UnitedStates TheBoulevard,LangfordLane,Kidlington,OX51GB,UnitedKingdom Copyright©2017ElsevierLtd.Allrightsreserved. Nopartofthispublicationmaybereproducedortransmittedinanyformorbyanymeans,electronicormechanical, includingphotocopying,recording,oranyinformationstorageandretrievalsystem,withoutpermissioninwritingfrom thepublisher.Detailsonhowtoseekpermission,furtherinformationaboutthePublisher’spermissionspoliciesandour arrangementswithorganizationssuchastheCopyrightClearanceCenterandtheCopyrightLicensingAgency,canbe foundatourwebsite:www.elsevier.com/permissions. ThisbookandtheindividualcontributionscontainedinitareprotectedundercopyrightbythePublisher (otherthanasmaybenotedherein). Notices Knowledgeandbestpracticeinthisfieldareconstantlychanging.Asnewresearchandexperiencebroadenour understanding,changesinresearchmethods,professionalpractices,ormedicaltreatmentmaybecomenecessary. Practitionersandresearchersmustalwaysrelyontheirownexperienceandknowledgeinevaluatingandusingany information,methods,compounds,orexperimentsdescribedherein.Inusingsuchinformationormethodsthey shouldbemindfuloftheirownsafetyandthesafetyofothers,includingpartiesforwhomtheyhaveaprofessional responsibility. Tothefullestextentofthelaw,neitherthePublishernortheauthors,contributors,oreditors,assumeanyliabilityfor anyinjuryand/ordamagetopersonsorpropertyasamatterofproductsliability,negligenceorotherwise,orfromany useoroperationofanymethods,products,instructions,orideascontainedinthematerialherein. BritishLibraryCataloguing-in-PublicationData AcataloguerecordforthisbookisavailablefromtheBritishLibrary LibraryofCongressCataloging-in-PublicationData AcatalogrecordforthisbookisavailablefromtheLibraryofCongress ISBN978-0-08-101225-3(print) ISBN978-0-08-101280-2(online) ForinformationonallWoodheadPublishingpublications visitourwebsiteathttps://www.elsevier.com/books-and-journals Publisher:JoeHayton AcquisitionEditor:MariaConvey EditorialProjectManager:CharlotteKent ProductionProjectManager:DebasishGhosh Designer:AlanStudholme TypesetbyMPSLimited,Chennai,India Contents ListofContributors ix Preface xi 1 Researchdevelopmentsthatcontributedtothelandscape oflongwallroofsupportdesignoverthepast25years 1 ThomasM.Barczak 1.1 Introduction 1 1.2 TheMineRoofSimulator 2 1.3 LongwallShieldSupports 3 1.4 StandingRoofSupports 21 1.5 TheGroundReactionCurve 30 1.6 ClosingRemarks 32 1.7 Disclaimer 33 References 33 2 Studyonthefactorsinfluencingtheloadcapacityofshield 35 JingyiChengandSydS.Peng 2.1 Introduction 35 2.2 ResearchMethodandSiteDescription 36 2.3 EffectofSettingLoadontheLoadingCharacteristicsofShield 38 2.4 Yielding 48 2.5 EffectofShearer’sCuttingandAdvanceofNeighboringShieldon ShieldLoad 57 2.6 Conclusions 64 Acknowledgments 64 References 64 3 Structural engineeringprinciplesincoalminegroundcontrol— thecommonlinkbetweenempiricalmodels,numericalmodels, andpracticalsolutions 67 RussellFrith 3.1 Introduction 68 3.2 OverviewofGroundControlAssessmentandDesignMethods 70 3.3 RelevantStructuralEngineeringPrinciples 71 3.4 ExamplesofRockMassBehaviorConformingtoStructural EngineeringPrinciples 75 3.5 Discussion 88 References 91 vi Contents 4 Rockfailureaboveandbelow chainpillars:implications forstrengthandfluidflowbetweengoafs 93 WintonJ.Gale 4.1 IntroductionandBackground 93 4.2 StressChangesandRockFailureAboutLongwallPanels 94 4.3 ComputerModelingoftheProcess 98 4.4 EffectsofFractureAbovePillarsonHydraulicConductivity 106 4.5 Conclusions 108 References 109 5 Overburdenresponsetolongwallmining 111 HuaGuo,QingdongQuandDeepakAdhikary 5.1 Introduction 112 5.2 StratifiedRocksandMechanicalCharacteristics 112 5.3 GeneralUnderstandingofOverburdenResponseto LongwallMining 121 5.4 FieldMonitoringofOverburdenDeformationProcesses 126 5.5 StressChangesandDistributionAboutLongwallFaces 129 5.6 IntegratedStudyofHydrogeologicalResponsetoLongwallMining 135 5.7 SignificanceofOverburdenResponseinLongwallGasEmission 143 5.8 FutureTrendsinOverburdenResponseStudy 151 Acknowledgments 153 References 153 6 Surfacesubsidencecharacteristicsanddamageprotection techniquesofhigh-intensitymininginChina 157 GuoWenbing,BaiErhuandYangDaming 6.1 DefinitionofHigh-IntensityMiningandItsCurrentStatus 157 6.2 SurfaceSubsidenceCharacteristicsCausedbyHigh-Intensity Mining 160 6.3 FeaturesofOverburdenRockFailureDuetoHigh-Intensity Mining 172 6.4 SurfaceSubsidenceControlandMiningDamageandProtection TechnologyofBuildings(Structures)inChineseCoalMines 184 6.5 EngineeringExamples 191 References 202 7 Groundcontrolduringpillarrecoverywithcontinuousminers 205 ChristopherMark 7.1 Introduction 205 7.2 GroundControlTheoryofPillarRecovery 208 7.3 GlobalStability 211 7.4 LocalStabilityRiskFactors 215 Contents vii 7.5 WorkProceduresandWorkerLocation 219 7.6 RibFalls,CoalBursts,andAirblasts 221 7.7 Conclusions 222 References 223 8 Nondestructivetestingofboltsupportqualityandstabilitycontrol ofcoalmineroadways 227 XieX.Miao,HouQ.Zhang,YuWuandYanL.Chen 8.1 Introduction 227 8.2 MechanismandEquipmentofNondestructiveTestingof BoltSupportQuality 229 8.3 TestingofBoltSupportQualityandWarningofSurrounding RockInstabilityInCoalMineRoadways 240 8.4 Conclusions 265 References 266 9 Practicalcoalminegroundcontrol—operator’sperspective 269 DanielW.H.Su 9.1 CoalPillarDesign 270 9.2 HorizontalStressImpactandManagement 275 9.3 LongwallCavingandHydraulicFracturing 278 9.4 RoofGeologyReconnaissanceandApplications 284 9.5 DeepMineDesignConsiderations 290 9.6 ExplorationandMapping 292 9.7 ImportantParametersAffectingInducedStressesinthe SandstoneandAbutmentPressuresintheGateroadPillars 292 9.8 DesignChangesImplementedtoReduceLongwall-Induced StressesintheSandstoneandtheGateroadPillars 294 9.9 SurfaceSeismicMonitoring 298 9.10 EffectsofLongwall-InducedSubsurfaceDeformationsonthe MechanicalIntegrityofShaleGasWellsDrilledOvera LongwallAbutmentPillar 299 9.11 SiteDescriptionandGeotechnicalInstrumentations 301 9.12 SiteGeology 302 9.13 3DFiniteElement Simulations 303 9.14 ResultsofGeotechnicalInstrumentationand3DFinite Element Analyses 303 9.15 PotentialofEmployingtheField-Instrumentation-Calibrated AbaqusModeltoEvaluateWellCasingStabilityUnder DifferentOverburdenGeologyandWellCasingDesign 309 9.16 Discussions 311 References 315 viii Contents 10 Theuseofcableboltsorgroundcontrol—currentapplications andfutureinnovation 319 StephenC.TadoliniandDennisR.Dolinar 10.1 Introduction 319 10.2 CableBoltDesignandManufacturing 321 10.3 TensionedCableBoltingSystems 333 10.4 IndentedPC-StrandCableBolts 337 10.5 SummaryandConclusions 342 Acknowledgment 343 References 343 11 Rockfailureprocessanalysismethod(RFPA)formodeling coalstratamovement 345 Chun-anTangandTaoXu 11.1 Introduction 345 11.2 RockFailureProcessAnalysisMethod 346 11.3 CaseStudies 353 11.4 Conclusions 374 Acknowledgments 376 References 376 12 Thickseamcoalmininganditsgroundcontrol 379 JiachenWangandYangLi 12.1 ThickSeamCoalMining 379 12.2 GroundControlinThickCoalSeamMining 393 12.3 Conclusions 406 References 406 13 Experienceingroundcontrolevaluationoflongwallrecovery usingnumericalmodelingandinsitumonitoring 409 PeterZhang 13.1 ConventionalLongwallRecovery 409 13.2 PredrivenLongwallRecoveryRoom 410 13.3 NumericalModelingandInSituMonitoringofPredriven LongwallRecoveryRoom 411 13.4 ShieldRecoveryinUsingPredrivenRecoveryRoom 428 13.5 DesignConsiderationsofRoofSupportinUsingPredriven RecoveryRoom 432 References 436 Index 439 List of Contributors Deepak Adhikary Commonwealth Scientific and Industrial Research Organisation (CSIRO),Kenmore,QLD,Australia Thomas M. Barczak Principal Geotechnical Engineer, Mine Advice Pty Ltd, Newcastle,NSW,Australia Yan L. Chen China University of Mining and Technology, Xuzhou, Jiangsu, P.R.China Jingyi Cheng China University of Mining and Technology, Xuzhou, Jiangsu, China YangDaming HenanPolytechnicUniversity,Jiaozuo,China Dennis R. Dolinar The National Institute for Occupational Safety and Health (NIOSH),Pittsburgh,PA,UnitedStates BaiErhu HenanPolytechnicUniversity,Jiaozuo,China RussellFrith Consultant WintonJ.Gale StrataControlTechnology,Wollongong,NSW,Australia Hua Guo Commonwealth Scientific and Industrial Research Organisation (CSIRO),Kenmore,QLD,Australia YangLi ChinaUniversityofMiningandTechnologyBeijing,Beijing,China Christopher Mark Pittsburgh Safety and Health Technology Center, Pittsburgh, PA,UnitedStates Xie X. Miao China University of Mining and Technology, Xuzhou, Jiangsu, P.R.China SydS.Peng WestVirginiaUniversity,Morgantown,WV,SlovakRepublic
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