東坡煤礦特厚煤層綜放開(kāi)采地表移動(dòng)規(guī)律研究.pdf

1、分類(lèi)號(hào)：分類(lèi)號(hào)：學(xué)校代碼：學(xué)校代碼：UDCUDC：密級(jí)：級(jí)：碩士學(xué)位論文碩士學(xué)位論文東坡煤礦特厚煤層綜放開(kāi)采地表東坡煤礦特厚煤層綜放開(kāi)采地表移動(dòng)規(guī)律研究移動(dòng)規(guī)律研究StudyonlawofsurfacemovementdefmationfextrathickcoalwithfullymechanizedcavingminingmethodinDongpocoalmine研究生：生：高超導(dǎo)師：師：徐乃忠徐乃忠研究員研究員學(xué)科專(zhuān)業(yè)：學(xué)科專(zhuān)業(yè)

2、：采礦工程采礦工程研究方向：研究方向：建筑物下采煤建筑物下采煤培養(yǎng)單位：培養(yǎng)單位：煤科總院開(kāi)采設(shè)計(jì)研究分院煤科總院開(kāi)采設(shè)計(jì)研究分院煤炭科學(xué)研究總院2014年4月煤炭科學(xué)研究總院碩士學(xué)位論文IIABSTRACTBecauseofthelargethicknessofcoalseamwhichwasproducedonetimeffullymechanizedminingtechnologyusedinextrathickcoalseamt

3、heinfluencedegreeofstratasurfaceishugelawofsurfacemovementdefmationhasitsparticularity.Lawofsurfacemovementdefmationundertheconditionstudiedlesswhichwillnotservicewellf“miningunderbuildingsminingunderwaterbodyminingunder

4、railway”wk.Thispaperaimsattheparticularityofsurfacemovementrulesoffullymechanizedcavingminingmethodusedinextrathickcoalaccdingtothecalculationdatameasuredbyobservationstationofsurfacemovementof914wkingfaceinDongpoMinethe

5、authcalculatedasetofsurfacemovementdefmationcalculationparametersfsubsidencefactq=0.74displacementfactb=0.25themajinfluencetangentangletanβ=2.95S1=26.0mS2=14.0mS3=S4=42mthemaininfluencespreadangleθ=86.5.Theauthuseddiscre

6、teelementsoftwareof3DECestablishedaseriesofnumericalsimulationmodelstostudylawofsurfacemovementdefmationbyfullymechanizedcavingminingmethodusedinspecialthickseaminthiswktheauthstudiedtherelatedinfluencefactsofsurfacemove

7、mentlawqualitatively.Withhelpofstratacontroltheyavarietyofmeanssuchassoilmechanicsmechanicsstudiedtheparticularityofsurfacemovementrulefnearlyshallowburiedspecialthickcoalseamusingfullymechanizedcavingminingmethod:fexamp

8、ledisplacementfactissmallerthemajinfluencetangentangleislargerdisplacementangleboundaryanglearelargerthantheotherparmetersundernmalmininggeologicalconditions.ThearticleappliedsoftwareofMatlabtodrawcurveofsurfacemovementd

9、efmationwhosemeasureddatabelongtomainsectionofwkface.Accdingtothesubsidencehizontalmovementdatatheauthalsowritedcalculateprogramtofitcalculateparameterswhichareusedinpredictionofminingsubsidence.Atthesametimeonthebasisof

10、probabilityintegralmethodprogramf3Dvisualizationofminingsubsidencefwkingfacewaswrittenwhichdisplaystheimageofthesurfacesubsidenceintuitively.KeyWds:fullymechanizedcavingminingmethodusedinextrathickcoallawofsurfacemovemen