深部缓倾斜薄矿体采场结构参数优化及采动沉陷特性研究

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1、中南大学硕士论文ABSTRACTWhenexploitingslowlyinclinedthinorebodyunderthebuilding，thereoftenappearslarge—scalepressureactivitiesbecauseoftheunreasonablestopestructureparametersandexploitdisorders，whichtriggersserioussubsidencedeformationofsurfaceandhaslostalotoforeresourcesTherefore，mini

2、ngschemedesignbasedonreasonableslopestructureparametersandexploitorderisparticularlyimportantinslopingZinccopperorebodyofTongkengmine，whichisinclinedthinorebody,isburieddeepandlocatedbelowtheindustryplazaandofficebuildingsThispaperbasesontheengineeringgeologysurveyandindoorrock

3、mechanicsexperiments，inuseofboththetheoreticalcalculationandnumericalsimulationtesttooptimizereasonablestopestructureparametersandminingsequence，andsynthesizescaleminingtechnologyandnowasteagainstminingtechnologytoputforwardtheminingscheme，andthenresearchthesurfacesubsidencecha

4、racteristicstriggeredbyminingThemaincontentsasfollowing：(1)CarryOUttheengineeringgeologysurveywork，thenmastertheorebodylgeologicalcharacteristicsofthesurroundingrock，andobtaintheoremechanicalparametersthrou曲theindoorrockmechanicsexperiments(2)Expoundthefailurecriterionofstopeen

5、gineering，andputforwardthedestructioncriterionofrockmassthroughthesynthesisofcommonlyusedRockStrengthTheory,PermissibleUltimateDisplacementCriterionandPlasticZoneCriterion(3)Constructanumericalmodeltocalculatestopelimitexposurearea，andcombinewithMatbewtheorytolimitofzincbodyexp

6、osedareaasvalueof900m2incopperminestopeThenconstructthenumericalmodeltooptimizethestopestructureparametersandminingsequence，theresultofwhichshowsthatthedesigninwhichthedistancedof40minstopetendencylength，widthof225minstopetrend，widthoforepillaras6m．slopingorderisfromoneendtothe

7、otheralongⅡendandrecoveryisalongthetendencyfromlowtohighpositionisthebest中南大学硕士论文design．(4)Inusageofbothscaleminingtechnologyandnowasteagainstminingtechnology,forwardtheminingschemeswhichapplytotheexploitonorebodywhichhascharacteristicsofbeingburieddeep，thinthicknessandslowincl

8、ination(5)Useprobabilityintegralmethodandfiniteelement