基于采動(dòng)應(yīng)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(xué)碩士學(xué)位論文基于采動(dòng)應(yīng)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(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：工程力學(xué)指導(dǎo)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