Loading...
Welcome to Journal of Kunming Metallurgy College! Today is Share:

Table of Content

    03 April 2020, Volume 35 Issue 4
    InfluenceAnalysisofUndergroundMiningontheStabilityofMainandAuxiliaryMineshaftinDashuigouSectionofYinminCopperMine
    FEIZhiwen,WUDong,YANGZe,TONGZhipeng
    2019, 35(4):  1.  doi:doi:10.3969/j.issn.1009-0479.2019.04.001
    Asbtract ( 96 )   PDF (2418KB) ( 200 )  
    References | Related Articles | Metrics
    Toensurethesafetyofthemainandauxiliarymineshafts,thepaperanalyzedtheinfluenceofundergroundminingonthemainandauxiliarymineshaftthroughFLAC3Dsimulation.Subsidencedeformationofsurfaceandmineshaftinprocessofdepositbodyexploitationwerecalculated,andjudgementweremadeaccordingtothegradeevaluationcriteriaforstabilityofgoafsiteinChina.Simulationresultsshowthatstratamovementisadynamicprocessoftransferfrombottomtotop,andsubsidencedeformationofmainandauxiliarymineshaftisverysmall,andthecontrolstandardofsurfacesubsidenceislessthan10cm.Atthesametimethesurfaceandmineshaftdonotproducetheplasticdistrbedzone,whichillustratesthemineshaftisinastablestate.Theresearchresultsprovidetheguidingbasisforstopedesignandsafeoperationofmainandauxiliarymineshaft.
    StudyonReasonableMalpositionDistanceofCombinedMininginClosedistanceCoalSeamsinShizhuangCoalMine
    LIUCong,NIEQi,CHENGYong,WANGFei,SHENYua
    2019, 35(4):  6.  doi:doi:10.3969/j.issn.1009-0479.2019.04.002
    Asbtract ( 96 )   PDF (1558KB) ( 180 )  
    References | Related Articles | Metrics
    ThispapertakesShizhuangCoalMineofZhenxiongShizhuangCoalIndustryCo.,Ltd.astheresearchtarget,usingtheoreticalanalysisandnumericalsimulationtodemonstratethefeasibilityofthecombinedminingplan.Studywastakenonthesafemalpositiondistanceofcombinedandintegratedmininginthetwocoalseams(averageoffset72m)ofCba
    ndCa6.Itaimstoguaranteethesafetyandefficiencyofmining,andprovidereferenceforminingofsimilarconditions.
    InfluenceofTectonicsandPalaeogeographyofBaoshanMiningAreainYunnanProvinceontheDistributionofGermanium inCoal
    LIUWei,FANGNa,YINQiong,LIWanhong,LINYo
    2019, 35(4):  11.  doi:doi:10.3969/j.issn.1009-0479.2019.04.003
    Asbtract ( 77 )   PDF (2273KB) ( 174 )  
    References | Related Articles | Metrics
    Theenrichmentdistributionofgermaniumincoalseamarenotuniformintimeandspace.Inordertofurtherstudyitsintrinsicregularityandinfluencingfactors,thesampesofgermaniumbearingcoalsinBaoshanminingareaofYunnanprovinceweretested,andthedistributionofgermaniuminthecoalinplaneandverticaldirectioniscomprehensivelyanalyzedincombinationwithitstectonicbackgroundandpalaeogeographicenvironment.Theenrichmentshowsobviousperiodicityandrelativestabilityoftheenrichmentarea,whichindicatesthattheenrichmentofgermaniumelementinthisareaisdirectlyrelatedtotectonicactivity.Thecarrierofgermaniummigrationistectonichydrothermalandwaterbody.Thespecificenrichmentareaisrestrictedbythedistributionoftectonicarea,thestrengthoftectonicactivityandthepalaeogeographicenvironment.
    PracticeofGentlyInclinedSlicingMininginHongmeiOpenPitIronMine
    XIAJianbo,LINYou,CHENGYong
    2019, 35(4):  20.  doi:doi:10.3969/j.issn.1009-0479.2019.04.004
    Asbtract ( 64 )   PDF (1074KB) ( 190 )  
    References | Related Articles | Metrics
    AimingatthetechnicalproblemssuchashighdilutionandhighlosscausedbytriangularminingingentlyinclinedopenpitmineofHongmeiIronMine,theminingtechnologyofgentlyinclinedslicingisputforward.Theinclinationanddipangleofslicingareconsistentwiththeinclinationanddipangleoforebody,theopentrenchisexcavatedalongthestrikeanddipoforebody,andtheminingispromotedsimultaneouslyalongthestrikeanddipoforebody.Gentlyinclinedslicingminingtechnologyavoidsaseriesofminingproblemscausedbytrianglebeltinbenchminingface,whichisbeneficialtoreducemininglossanddilutionrate.Theaveragelossrateanddilutionratedecreasedby28% and41% respectively.
    AnalysisontheStabilityofHillsideWasteRockDumpSlopeinaMine
    PENGGuocheng,LIHao,YANGZe,ZHUTao
    2019, 35(4):  24.  doi:doi:10.3969/j.issn.1009-0479.2019.04.005
    Asbtract ( 68 )   PDF (1881KB) ( 183 )  
    References | Related Articles | Metrics
    Dumpistheshelterofopenpitwasterock.Itisvitaltodesignslopeofadumpandanalyzeitsstability,whichdirectlyaffectsthenormaloperationoftheopenpit.Inordertoensurethesafeuseofthewasterocksiteanditsslopestability,thefinitedifferenceprogramFLAC2D andlimitequilibriummethodwereusedtocalculatethestabilityofthecurrentslopeofthewasterocksiteundernatural,seismicanrainfallconditionsinlinewiththeengineeringgeologicalconditions.Thesimulationresultsshowthatunderthreedifferentworkingconditions,theslopestabilityofthewasterockyardmeetstherequirementsofthestandardsafetygrade,andtheslopeisstableandhasacertainsafetyreserve.Itshowsthatthedesignschemeoftheoriginalwasterockyardstackingisreasonable,andcanprovideareliable.
    SiltyInterlayer/LaminaeCharacteristicofQiongzhusiFormationShaleinKunmingArea
    CHENGYong1,2,NIEQi1,LIUCong1,WENYiming1,LINJifei1,XIAJianbo1
    2019, 35(4):  29.  doi:doi:10.3969/j.issn.1009-0479.2019.04.006
    Asbtract ( 77 )   PDF (2065KB) ( 193 )  
    References | Related Articles | Metrics
    Thesiltyinterlayer/laminaeinshalehasimportantsignificanceforreservoirproperty,gasbearingproperties,gasmigrationandfracturingdevelopmentofshalegas.Thesiltyinterlayer/laminaedevelopedinQiongzhusiFormationoutcropsectioninKunmingwerestudied.Theresultsshowthat:1)thesiltyinterlayer/laminaeandpureblackshalelayerhaveobviousdifferencesincolor,structure,morphology,grainsizeandmineralcomposition;2)Inthelongitudinaldirection,thedistributionandsinglelayerthicknessofsiltyinterlayer/laminaearerelativelyheterogeneous;3)Thefractaldimensionis0.702,whichissmallandmayindicatethebigdifferencebetweenthesinglelayerthicknessofthesiltyinterlayer/laminarintheshale.TheresultscanbeusedtoestimatetherelevantprametersofQiongzhusiFormationshaleinadjacentareasorthesamesedimentaryenvironment.
    AnIntegratedMethodtoStrengthentheTailingsDam
    YANGShangli
    2019, 35(4):  36.  doi:doi:10.3969/j.issn.1009-0479.2019.04.007
    Asbtract ( 70 )   PDF (2441KB) ( 174 )  
    References | Related Articles | Metrics
    Thesafetyoftailingsdepotistheessentialbasicsofminingenterprises.Thedamageoftailingsdamisthethirdimportantcauseofthefivestylesofbreakingmodeoftailingsdepot.Whentheexpansionoftailingsdepotarenotinsafeconditionandthereisnosufficientsimpleconstructionconditions,comprehensiveapproachcanbeadoptedtostrengthenthedam.Becauseofthedifficultiesinlandacquisitionandsiteconditions,thesubdamofthetailingsdepothadtobestrengthenedby“highpressurespinsprayingpiles+retailingwall+steelpipepiles+gravelsoil”.Afterthreeyears’stockpiling,thetailingsdepothasthefinalcapacityinsecurity.
    SlopeStabilityAnalysisof25Milliont/aOpenpitMiningProjectinJinningPhosphateMine
    WANGTianlong
    2019, 35(4):  42.  doi:doi:10.3969/j.issn.1009-0479.2019.04.008
    Asbtract ( 46 )   PDF (1170KB) ( 192 )  
    References | Related Articles | Metrics
    TheminingdepthofJinningopenpitphosphatemineisdeepeningdaybyday.Thestabilityoftheupperslopeofthestopeisdirectlyrelatedtothenormaloperationofthemine,whichalsoaffectstherationalityofitsdeepextensionminingdesign.Itiscriticallyimportanttoevaluatethestabilityoftherockyslope.LimitequilibriummethodGeoslopewasusedtosimulatethestabilityofthestopeslopeaccordingtotheengineeringgeologicalconditions.Theslopesafetyfactorsarecalculatedundernaturalcondition,earthquakeconditionandrainfallconditionrespectively.Theresultsshowthatthestopeslopeisstablewithsomesecurityreserve,andslopestabilityachievesthesafetygradeandmeetsrequirementsofcodesconcernedinallworkingconditions,whichillustratesthatthedesignofstopeslopeisfeasibleandrationaltocertaindegree.Atthesametime,therelevantmeasuresareputforwardtoimprovethestabilityofslopeandaddressthedeformationmonitoringofslope.
    AnalysisofTestingAirquantityDistributionoftheDipofWorkingFaceandCharacteristicsofAirLeakage
    LIWanhong1,ZHUKai2,LIUWei1,LIUCong1
    2019, 35(4):  47.  doi:doi:10.3969/j.issn.1009-0479.2019.04.009
    Asbtract ( 62 )   PDF (1294KB) ( 174 )  
    References | Related Articles | Metrics
    Inordertograspthecharacteristicsofairleakageingoafandtoformulatethemeasuresofleakingstoppage,athoroughtestingschemehasbeenformulatedinthispaper.Thepressureandenergydistributionandairvolumevariationintheinclineddirectionoftheworkingfaceweremeasuredandanalyzedbymeansofthecombinationofunitmethodandtracergas.Bydataanalysis,thelawofpressuredifferenceandairleakageintheworkingfacewasmastered,andthelocationandabsoluteairleakageingoafweredefined.Itcanprovidetechnicalsupportandguaranteefortheventilationmanagementinworkingfaceandpreventionandcontrolofspontaneouscombustioningoaf.
    MultiscaleDynamicSimulationofLandUseSpaceinYunnanCentralUrbanAgglomerationArea
    CHENGuoping1,YUANLei2,WUXiaowei3,ZHAOKe4,GUMiao4
    2019, 35(4):  52.  doi:doi:10.3969/j.issn.1009-0479.2019.04.010
    Asbtract ( 81 )   PDF (1199KB) ( 206 )  
    References | Related Articles | Metrics
    Atpresent,mostofthelandusedynamicsimulationsarebasedonsinglescalemathematicalmodels,withoutconsideringthelocalcharacteristicsandnonstationarycharacteristicsoflanduseanddrivingfactors.TakingtheYunnancentralurbanagglomerationareaasanexample,thispapercomprehensivelydeterminesfromthetwoaspectsoflandusestructurefractaldimensioneffectandROCvalue.Logisticregressionanalysiswasusedtodeterminethedrivingfactorsandconstructamultiscenariodynamicsimulationmodel.ExperimentsshowthatthelandusepatternsimulationmodelbasedonGWRLogisticandCLUEScansignificantlyimprovethescaleapplicabilityofthemodelandtheaccuracyoflandspacelayoutsimulation.
    ApplicationResearchofGreenVegetationExtractionMethodBasedonUAVImage
    LIDongsheng1,2,LIUHaihong3,ZHANGBingliang4,WANBaofeng2
    2019, 35(4):  58.  doi:doi:10.3969/j.issn.1009-0479.2019.04.011
    Asbtract ( 67 )   PDF (1574KB) ( 239 )  
    References | Related Articles | Metrics
    Inthispaper,thevegetationindexsuitableforUAVimageextractionisobtainedthroughtheanalysisandcomparisonofvariousvegetationindexesthroughdatastatistics.Firstly,grayimagesweregeneratedforeachvisiblevegetationindexbyUAVimages.Then,vegetationandnonvegetationpixelclassificationthresholdsareobtainedaccordingtohistogram bimodalmethodoriterativethresholdmethod, andtheoptimalthresholdisusedtoextractvegetationinformationfrom thegrayscaleimagesofvegetationindex.Finally,theprecisionofvegetationinformationextractionindexesarecompared.ItshowsthattheaccuracyofEXGandVDVIishigherthanothervegetationindexes.InordertoverifytheaccuracyofEXGandVDVI,anotherorthophotoimageisselectedfromthesameperiodimagesandextractedvegetationinformationwiththesamemethod.TheresultshowsthatEXGandVDVIbasedonUAVimagescanaccuratelyextractvegetationinformationwithanextractionaccuracyofmorethan90%,whichbecomeanimportanttechnicalmeanstoextractgreenvegetationcoveragebyusingUAVimages.
    QualityCheckingandVisualizationAnalysisofMultiGNSSDataBaseonAnubis
    WANGLidang1,XIONGDengliang1,LIYing2,LONGShihai3
    2019, 35(4):  66.  doi:doi:10.3969/j.issn.1009-0479.2019.04.012
    Asbtract ( 112 )   PDF (1635KB) ( 201 )  
    References | Related Articles | Metrics
    AsoftwarenamedAnubis,whichcananalyzethequalityofmultiGNSSdata,isintroduced.ThefunctionofAnubisisextendedbyshellscriptinLinuxenvironment,andthisscriptcanautomaticallyperformqualityanalysisonlargeamountsofGNSSdataandgeneratevisualviews,thusimprovingtheconvenienceandusabilityofAnubis.
    AccuracyAnalysisofBeidouSatelliteforKMCORSBaselineSolution
    WEIBaofeng1,CHENGuoping2,ZHANGJunhua1,LIXinghua1
    2019, 35(4):  75.  doi:doi:10.3969/j.issn.1009-0479.2019.04.013
    Asbtract ( 76 )   PDF (943KB) ( 185 )  
    References | Related Articles | Metrics
    WiththeapplicationofBDSsatelliteinrecentyears,moreandmoreSamsungcontinuousoperationreferencestationshavebeenbuiltbasedonBDSsatellite.ThispaperanalysesandcalculatesthefeasibilityofKunmingcontinuousoperationreferencestation(KMCORS)throughBDSsatellitetomaintaintheurbancoordinateframeofKunmingandthefeasibilityofthecoordinatedatumtomeettherequirements.Thefinalaccuracyisanalyzedqualitativelyandquantitatively.ItisconcludedthatitisfeasibletouseBDSsatellitetomaintainthereferencestation.
    AnalysisonHabitatQualityEvolutionofKunmingXishanScenicAreaBasedonLandUseChange
    BANYanwamen,HUXiaojie
    2019, 35(4):  80.  doi:doi:10.3969/j.issn.1009-0479.2019.04.014
    Asbtract ( 91 )   PDF (979KB) ( 162 )  
    References | Related Articles | Metrics
    TheevolutionofhabitatqualityinlinewiththelandusechangeinKunmingXishanscenicareafrom2006to2016withInVESTsHabitatQualityanalysismodulewasanalyzed.TheresultsshowedthattheoverallhabitatqualityofKunmingXishanscenicareahasimprovedduring2006and2016.ThehabitatimprovementareasweremainlyconcentratedalongtheGaohaiexpresswayandGaoyaovilllage.However,thehabitatqualityofthetransportationnetworkbetweenthevillagesinthescenicspotandthetouristroutealongthescenicspothasdecreased,andthefallingareahasaband-likedistribution,whichalsomakesthehabitatfragmentationintheregionincrease.Thestudyalsoanalyzedthemainfactorsaffectingthequalityofthehabitat,andprovidedscientificreferencefortheregionaldevelopmentplanningandhabitatprotectionofKunmingXishanscenicarea.
    ResearchonImprovingtheIdentificationRateofAthletes’DynamicInformationCaptureSystem
    YANGQing1,TONGYunfeng1,YANGGuangzhao2
    2019, 35(4):  85.  doi:doi:10.3969/j.issn.1009-0479.2019.04.015
    Asbtract ( 82 )   PDF (1221KB) ( 172 )  
    References | Related Articles | Metrics
    InordertoimprovetherecognitionrateoftheelectronictagsinRFIDsystem,thispaperstudiesandanalysestheanticollisionstrategyandthecontrolofeffectiverecognitionrange.Ontheonehand,theperformanceofpureALOHAalgorithmappliedtoathletes’dynamicinformationcapturesystemisanalyzed.Ontheotherhand,themostsuitableantennacoverageisdeterminedbymodelingandsimulation,soastoreducetheprobabilityofmisidentificationandmissedidentification.
    BriefAnalysisoftheDevelopmentfor5thGenerationTechnologyandIntelligentandConnectedVehicles
    ZHOUPeng1,YANGQingrong1,YANGJing1,WUXiangji2
    2019, 35(4):  90.  doi:doi:10.3969/j.issn.1009-0479.2019.04.016
    Asbtract ( 91 )   PDF (1067KB) ( 220 )  
    References | Related Articles | Metrics
    Tosolveurbantrafficcongestionandtherelevantproblems,thepaperanalyzedthedevelopmentandstrategictrajectoryfor5GtechnologyandICV,anditalsointroducedtheresearchsignificanceanddevelopmenttrend.Anideawasproposedtointegrate5GwithICVtobringtheircommonadvantagesintofullplay.ThisschemewasconducivetotheimprovementofICV’slargescaleandcustomizedtechnicalframework,andcanrealizetherealtimeinformationexchange,loaddistributionandinformationantiinterferenceandsecuritybetweenICVvehicles.ThedevelopmentofICVisprospected.
    IntelligentHighwayAntiTrafficCongestionModelandAlgorithm BasedonLBSandRealtimeSC
    WANGNingbang,XUBo
    2019, 35(4):  95.  doi:doi:10.3969/j.issn.1009-0479.2019.04.017
    Asbtract ( 85 )   PDF (1828KB) ( 175 )  
    References | Related Articles | Metrics
    BasedonLBS,Nginxandrealtimescientificcalculation,thepaperproposedtheresourcemodelofcomputerlikesystemandCPUlikeschedulingalgorithmfortrafficcongestionpreventionofintelligentexpressway.TheAntitrafficCongestionControlSystemofIntelligentExpresswayadoptstheBaiduTracetechnologybasedonLBSandLoadBalancingtechnologybasedonNginx.ThekeypartofAntitrafficCongestionControlPrototypeSystem ofIntelligentExpresswayisrealizedbyAndroidclient,system background,realtimescientificcalculationofBaiduTracetechnologybasedonLBSandthealgorithmoflineshopdistance.Theresearchprovidesareferenceforsolvingtheproblemofexpresswaytrafficcongestionorurbantrafficcongestionandotherrelatedresearches.
    AnalysisonRuralSolidWasteDisposalSystem:aCaseStudyonXiaobaVillage
    LIYana,WUYanshengb,GAOXiongb,YANGYongfengc
    2019, 35(4):  104.  doi:doi:10.3969/j.issn.1009-0479.2019.04.018
    Asbtract ( 68 )   PDF (1052KB) ( 189 )  
    References | Related Articles | Metrics
    ThegarbagedisposalinsomeborderruralareasofYunnanProvinceisindisorder,whichseriouslyaffectsthelivingenvironmentandhealthofresidentsandpolluteswaterbodies.Thepaperhasdesignedavillagehouseholdgarbagedisposalsystembasedonsystemengineering.Itfollowstheprinciplesofclassifiedcollection,pointtransferandlocalecologicalincineration,andmakesanintegratedanalysisoffactorssuchasthetargets,projectmanagement,investmentandoperationcost,transportation,etc.Inthisway,householdgarbageisreducedandrecycledlocallytoprotectecologicalenvironment.
    TeachingQualityControlSystem GeoinformationTechnologyofSurveyingandMappingSpecialtyinHigherVocationalCollegesBasedonTQC
    MAJuan,LYUCuihua,GEJunjie,ZHANGWeihong
    2019, 35(4):  109.  doi:doi:10.3969/j.issn.1009-0479.2019.04.019
    Asbtract ( 76 )   PDF (1033KB) ( 192 )  
    References | Related Articles | Metrics
    UsingthebasictheoryandmethodofTQCandtakingstudentsasthetargetlikeproducts,thispaperanalyzesthemainfactorsandkeylinksofteachingqualitycontrolofgeoinformationtechnologyofsurveyingandmappingspecialtyinhighervocationalcolleges.Itputsforwardateachingqualitycontrolsystemaimedtocultivatestudents’vocationalability.Thepracticeoftheteachingreformprovesthatthesystemhasachievedthegoalofimprovingteachingqualityandpromotingstudents’employment.