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《深部緩傾斜薄礦體采場(chǎng)結(jié)構(gòu)參數(shù)優(yōu)化及采動(dòng)沉陷特性研究》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、中南大學(xué)碩士論文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中南大學(xué)碩士論文design.(4)Inusageofbothscaleminingtechnologyandnowasteagainstminingtechnology,forwardtheminingschemeswhichapplytotheexploitonorebodywhichhascharacteristicsofbeingburieddeep,thinthicknessandslowincl
8、ination(5)Useprobabilityintegralmethodandfiniteelement