基于采動應力作用的綜采工作面軟巖尾巷穩(wěn)定性研究.pdf

1、太原理工大學碩士學位論文基于采動應力作用的綜采工作面軟巖尾巷穩(wěn)定性研究姓名：趙永宏申請學位級別：碩士專業(yè)：工程力學指導教師：康天合2003.5.1太原理工大掌碩士研究置0掌位論文ABSTRACTInsomehighgasmines，thetailgatetodraingasfromthefullymechanizedworkingfaceiseffcctedbytheminingabutmentfromtwoworkingfaceItb

2、ringtoagreateffectonthetail—gatestabilityThepropertiesofrockmasses，andthedeformation，thedestructionofthetailgate，anddistributionofsupportingpressureundertheinfluenceofmining，effectthestabilityoftail—getdirectlySothestudy

3、ofthedeformation，thedestructionofthetail—gateandthedistributionlawofsupportingpressurehasgreatpracticalitysignificanceDifficulttoobservesupportingpressureanddeformationdirectlyinworkingsiteandreliabletesttechniquelacking

4、causeverydifficultytostudytheeffectlawofthedeformation，destructionandsupportpressurewhileminingSothisarticlestudiedthedeformation，thedestructionandthesupportingpressuredistributionlawofthesoft—rocktailgateunderphysicsenv

5、ironmentofinTunlanmineThemaincontentandconclusionsareasfollows：1)Thebasictheory，calculationmethodsofthefinitedifferenceandthebuildingof3Dnumericalmodelhavebeenstudied21Accordingtogeologicalcharacteristicandgeometrycharac

6、teristicofNo12206workingfaceinTunlanmineThethreedimensionnumericaimodelsimulatingthefullymechanizedworkingisbuiltbythefinitedifferencemethod3)Accordingtoalargeamountofnumericalexperimentation，analyzingtheresultsofcalcula

7、tionofsupportingpressureanddeformationunderminingeffectonthetailgate，thelawofdeformationandsupportingpressuredistributionisgot4)Analyzingthelawofsupportingpressureanddeformationunderdifferentsupportingconditionswhenithas

8、mininginfluenceornotintail—gate，itCancontrolsthedeformationanddestructionoftail—gatefoundthatboltinfloor，intheroofandinthesideseffectivelyKEYWORDS：soft。rocktail—gate，threedimensionnumericsimulation，miningpressureeffect，a