東坡煤礦特厚煤層綜放開采地表移動規律研究.pdf

1、分類號：分類號：學校代碼：學校代碼：UDCUDC：密級：級：碩士學位論文碩士學位論文東坡煤礦特厚煤層綜放開采地表東坡煤礦特厚煤層綜放開采地表移動規律研究移動規律研究StudyonlawofsurfacemovementdefmationfextrathickcoalwithfullymechanizedcavingminingmethodinDongpocoalmine研究生：生：高超導師：師：徐乃忠徐乃忠研究員研究員學科專業：學科專業

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單位：培養單位：煤科總院開采設計研究分院煤科總院開采設計研究分院煤炭科學研究總院2014年4月煤炭科學研究總院碩士學位論文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