急倾斜相邻矿体采动影响与采矿方法分析-analysis on mining influence and mining method of steeply inclined adjacent orebody.docxVIP
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急倾斜相邻矿体采动影响与采矿方法分析-analysis on mining influence and mining method of steeply inclined adjacent orebody
Abstarctconditionofsysteminstability,heightofroomandthelengthalongthestrikedirectionofthefunctionwasdeducedinthecriticalsituationofsysteminstability.Basedontheresearchoftherelationshipbetweeninterlayerdisplacement,potentialenergy,timeandtheinterlayerdeformationanalysis.Acquiredafunctionaboutthemaximalinterlayerdisplacementandtime.Andpredictthemaximumvalueofinterlayerdisplacementinhighermiddlepart.Thirdly,FLAC3Dnumericalsimulationsoftwarewasusedtostudythestresschangeruleandthelawoftheinterlayerdisplacement.Bysimulatedtheoverheadminingofthesteeplyinclinedadjacentorebodyandthedifferentminingsequencesinstageoreblockforthestressdistributiondiagraminfrontofsteeplyinclinedadjacentorebody.Stresschangesbyparabolatypecanbedividedintofourcategories.DividedStresschangesintofourcategoriesbyparabolatype.Itisconcludedthatthemostadvantageoustomaintaingroundpressurestabilityofminingisdoublewingsoutwardmining.Finally,throughthefiveindexesaboutsurfacemovementstateandtheplasticzonedistributiontoselectminingsequencesofphase.Atthesametimethegeneralruleofsurfacemovementstatewereanalyzed.Contraposedthemaindisadvantageinsublevelmining,suchasmanypreparationroadways,largeminingpreparationcoefficient,etc.Putforwardwholestagehighcombinationchiselblastingminingmethodusedforthethicknessoforesectionwasmorethan8m.Andintroducedthestopelayout,processprincipleandprocessofthisminingmethod.Keywords:Steeplyinclinedadjacentorebody;Cuspcatastrophetheory;Mininginfluence;Numericalsimulation;MiningmethodIII目录摘要.........................................................................................................................................1Abstarct......................................................................................................................................II目录.......................................................................................................................................IV第一章绪论..................................................................................
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