三軟沿空掘巷底鼓機理與控制研究.pdf

1、安徽理工大學碩士學位論文三軟沿空掘巷底鼓機理與控制研究姓名：褚福永申請學位級別：碩士專業(yè)：采礦工程指導教師：孟祥瑞20070615安徽理J人學碩士學位論文AbstractThemechanismandcontrolofCOalseamwithsoftcoal，roofandfloorroadwayfloorheaveisadifficultprobleminminingsubjectAboveall，Thepaperpointsoutt

2、hatthebottomstratabreachofroadwayiselasticandplasticdeformationduringtheperiodoftunnelingthroughanalyzingstabilityofoverlyingstrataanddistributionoflateralabutmentpressurebeforeminingBuildingthemechanicalmodelofbottomstr

3、ataanddisposingtheprincipleofgobsideentrydrivingfloor—heave，throughanalyzingthelawofmotionofcoverrockanddistributionofabutmentpressureonthesideofentitycoalduringtheperiodofmining；Andthen，Adequacyanalyzingthephysicalandme

4、chanicpropertyofthreesoftcoalstrataanddiscussingthefloor—heavemechanismofthreesoftcoalstrata，accordingtoextensivenessrockmassasresearchsubjectsandbindingmechanicalmodelofbottomstrata；Throughthetheoreticcomputationorexper

5、imentalformulas，themeasureoffloorheavearisefromthefactorsastheelasticandplasticdeformation，therockdilatancyandrockcreepareestimated；Onemechanicalmodelaccountingforthestructureexpansionofrockpeak—residualdeformationisputf

6、orward；therebythemechanismofseriousfloorheavearisefromrockpeakresidualdeformationandrockcreepThepaperascertainstherationalcoalcolumnbreadthanddiscussingtheinfluenceoflawofmotionofroofstrataandabutmentpressureforfloorheav

7、eTheapproachesandpropermethodofcontrollingfloorheavearebroughtforward，Theefficiencyofthesupportingmethodofwholesectionboltandcableisestablishedthroughthenumericalcalculationofreinforcementforroo￡bothsidesandbasicangle，an

8、dindicatesthekeyfactorslieinthereinforcementofbothsidesanglesandenhancementofselfbearingabilityofcoalpillar；thesupposingprojecthassuccessfullybeenputintopractice，vasteconomicprofitandtechnologicaleffecthasbeenachieved，as

9、wellaSagoodmethodtocontrolforthefloorheaveofsimilarroadwayhasbeengivenFigure[74]table[12]reference[75]Keywords：coalsealYlwiththreesoftcoal，floorheaveofgob—sideentrydriving，numericalmodeling，floorheavecontrolChinesebooksc