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    30 October 2018, Volume 34 Issue 5
    StudyonRelationshipbetweenFissureDevelopmentand#br# StateofSoilinExpansiveSoil
    LIUWei1, YINQiong1, FANGNa2, CHENGYong1, LIUCong1
    2018, 34(5):  1.  doi:10.3969/j.issn.1009-0479.2018.05.001
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    Thedegreeoffissuredevelopmentofexpansivesoilunderdifferentwettingcyclesisdifferent.Inordertofindouttherelationshipbetweenstressstate,expansiveforceandthedevelopmentdegreeoffinalcracks,theexpansivesoilsfromPuzheheiAirportinWenshanBasin,YunnanProvince,weresampledandtestedunderdry-wetcycling.Theresultsshowhattheultimatecrackdevelopmentdegreeofexpansivesoiliscloselyrelatedtotheload.Theaveragecracklengthperunitareadecreasesfrom15317mm/10cm2under5kPaloadto10558mm/10cm2under40kPaload.Underthesameload,theaveragecracklengthperunitareaispositivelycorrelatedwiththeexpansiveforce,andtheexpansiveforceofsoilsampleis1276.KPacorrespondingto9783mm/10cm2 increasedto3952kPaofsoilsampleswellingforcecorrespondingto11391mm/10cm2.Theresultsshowthattheultimatecrackdevelopmentdegreeofexpansivesoilisrestrictedbyloadandisrelatedtoitsownexpansiveforce,whilethecrackdistributionisaffectedbywatercontentgradientdistribution.
    EvaluationonSlopeStabilityof1#MajorGrooveDumpinDahongshanCopperMine
    WUDong, DENGLiang, YANGZ
    2018, 34(5):  7.  doi:10.3969/j.issn.1009-0479.2018.05.002
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    Thestabilityoftherockslopeofthe1#majorgroovedumpisdirectlyrelatedtothehumanslifeandpropertyinthisarea,soitiscriticallyimportanttomakethesafetyevaluationoftherockslope.The1#majorgroovedumphasbeenusedfornearly10years.Inordertoensurethesafeuseandslopestabilityofthe1#majorgroovedumpinthelongrun,FLAC2D andGeo-slopeareusedtosimulatethestabilityofthewasterockdumpslopeaccordingtotheengineeringgeologicalconditions.Simulationresultsshowthatsafetyfactorsofthewasterockdumpslopecanmeettherequirementofsafetygradeunderthenaturalstateandearthquakecondition,atthesametimethestabilityagainstslidingandstabilityagainstoverturningoftheblockingdregsdamalsomeettherequirementofthestandard.Sothedumpslopeisstablewithsomesecurityreserve,whichillustratesthattheoriginaldesignofheaprowofthewaste
    rockdumpisfeasibleandrationaltoacertaindegree.Theresearchgivesinsighttoanalyzingthestabilityof1#majorgroovedumpandthecheckandacceptanceofsoilandwaterconservationfacilitieslateron
    GeochemicalindicatorsofPaleosalinit
    CHENGYong1, 2, XIANGDan3, ZHUQian3, SONGHuaxing4
    2018, 34(5):  13.  doi:10.3969/j.issn.1009-0479.2018.05.003
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    Paleosalinityisofgreatsignificanceforrecoveringpaleogeographicenvironmentinsedimentaryperiod,recognizingthechangesandmechanismofpaleo-environment,learningaboutthedevelopmentofsourcerocksandorganic-richshales.Usinggeochemicalparameterstoindicatepaleosalinityisamatureandreliablemethod.Severalgeochemicalmethodscommonlyusedofpaleosalinityrecoverywereinroducedinthispaper,suchasBoronelementmethod,theabundanceandratioofelement,elementscatterplot,iotopeandsedimentaryphosphatemethod.Inaddition,thelimitationsandproblemsthatshouldbepaidattentiontointheirilizationwerealsoanalyzed.
    OptimizedDesignofVentilationSystem forSmallandMedium ComplexOreGroups
    DONGJuan, LINJifei, KUANGShihua, WANGYujun, XIAJianbo, CHENGYong
    2018, 34(5):  19.  doi:10.3969/j.issn.1009-0479.2018.05.004
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    IntheprocessofminingdesignofacopperoregroupinWenshaninYunnanProvinceofChina,wedeterminedthemineventilationsystemplanfromaglobalperspectivebasedonthetruethreedimensionalsolutiontotheventilationnetworkforeachorebodyinthegroup.WeproposedapulloutmechanicalventilationsystemwithonewingreturnairandthatwithtwowingsreturnairintheprocessofdesigningthelowersectionoftheNo.1orebody.Throughnetworksolutionandtechnicalandeconomic
    comparisonofthetwoschemes,theresultsshowedthatscheme2(namely,theventilationsystemwithonewingreturnai)savedtheventilationcostof2761800yuanthanscheme1(theventilationsystemwithtwowingsreturn),soitisrecommendedthatmineusescheme2asthemineventilationsystem.Inthispaper,theoptimizeddesignideasandresultsoftheventilationsystemforsmallandmediumsizedcomplexorebodiescanprovidereferenceforsimilarmineproduction
    ApplicationandComparativeAnalysisoftheWeightedGreyModelinGoafSubsidenceMonitoring
    WANGJianying1, HUANGDewu2
    2018, 34(5):  23.  doi:10.3969/j.issn.1009-0479.2018.05.005
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    Withsubsidencemonitoringofthegoafastheresearchobject,themonitoringdataweremodeledandanalyzedbyusinggreymodelGM (1,1)andweightedgreymodelPGM (1,1)inthegreysystemtheory.Twoifferentweightingschemes,namely,thatadoptingtheminimummeanvalueofrelativeerrorabsolutevalueandthatingtheminimummeanvalueofthesumoftheabsolutevalueoftheerror,reflectthecontributionrateofeachmonitoringvaluetothemodel,whichismoretimelinessthanthetraditionalequalweightmodel.Combinedwithengineeringexamples,thefeasibilityandreliabilityofdataprocessingandanalysisofsettlementmonitoringdataingoafusingthegreytheoreticalmodelwereverified.Inparticular,intherelativeerrorabsolutemeanminimummethod,whetherfromthefittingaccuracyorshort-termprediction,PGM(1,1)isbetterthanGM(1,1)model,anditsapplicationisworthstudying.
    DenoisingMethodofBuildingLaserPointCloudObtainedfrom GroundFixedStatio
    MAJuan1a, LONGGen2, ZHAOWenliang1b, SUNXiaoli3,
    2018, 34(5):  30.  doi:10.3969/j.issn.1009-0479.2018.05.006
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    hispaperanalyzesthecharacteristicofbuildinglaserpointcloudobtainedfromgroundfixedstation,andproposesthreetypesofnoisedataofbuildinglaserpointcloud.Accordingtothedifferenttypesofnoisedata,itusesthevisualinteractivemethodandthebilateralfilteringalgorithmbasedpointcloudmodeltoconstructabilateralfilterforacomprehensivetreatment.Theexperimentalresultsshowthatthismethodcaneffectivelyeliminatethenoisedataofbuildingfacade.
    ApplicationofUnmannedAerialVehicle(UAV)TechnologyinReal#br# EstateSurveyingandMapping
    LIDongsheng1a, 2, ZHANGBingliang3, WANBaofeng1a, QIUPengrui
    2018, 34(5):  35.  doi:10.3969/j.issn.1009-0479.2018.05.007
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    Traditionalestatemappingisusuallyperformedwithatotalstationassistedwithhandheldlaserranger,whichisslowinmanipulatingspeedandexpensiveinhumancost.UAVobliquephotographytechnologyisatechnologydevelopedinrecentyearsinwhichphotogrammetryisusedtocollectdata.Throughtheafterprocessingmodelsoftware,itispossibletobuildthehouse3Dmodelandtoacquirethehousetexturecharacteristics.Thispaperusedobliquephotogrammetrytoconstructa3DmodelofruralconstrutionlandthroughhousingsidedataacquisitionwithTsinghua3Dsoftware.Then,itcomparedthecollecteddatawiththemeasuredlengthofthehousingbyhandheldlaserranger.Fromtheresults,itcanbasicallymeettheaccuracyrequirementof1∶500realestatecharts.
    StudyonProcessParametersofAsymmetricHydrogenationofCamphorbyNickelOxideCatalystunderAtmosphericPressure
    ZHANGRunhua, LILib, NINGMencui
    2018, 34(5):  41.  doi:10.3969/j.issn.1009-0479.2018.05.008
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    Consideringthehighhydrogenationactivityandasymmetricselectivityofnickelmetal,theasymmetricreductionofcamphorintoDborneolwascarriedoutinNiO/alcoholsystem.Certaineffectsofintheprocesswereinvestigatedsuchascamphordosage,catalystamount,reactiontime,reactiontemperatureandpotassiumhydroxide/sodiumbromidedosageontheyieldofborneol.Theexperimentalreultsindicatedthatontheoptimalreactioncondition,theDborneolproducedreachedthehighestinNiO/alcoholsystemwhenthecatalystamountis52mmol,thecamphordosageis66mmol,reactiontemperatureis50℃,reactiontimeis5h,andpotassiumhydroxide/sodiumbromidedosageareinthemoleproportionof128∶1.
    StudyontheTechnologyofRuralDispersedSewageTreatmentSystem:ACaseonXiaobaVillage
    WUYanshenga, LIYanb, GAOXionga, CHENGYongweia,
    2018, 34(5):  45.  doi:10.3969/j.issn.1009-0479.2018.05.009
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    Ruralenvironmentalproblemshavebecomeincreasinglyprominent.XiaobaVillageinFudongTown,YunnanprovinceisapovertyalleviationtargetofKunmingMetallurgyCollege,andpeoplesproductionandlivingherehavebroughtagreatimpactonthelocalenvironment.Duetothelackofvillagesewagetreatmentsystem,alargeamountofdirectlydischargedpollutionhasaffectedthewaterqualityofLancangriver.InordertoeffectivelycontrolthewaterpollutionsourcesinXiaobavillage,comparisonoffourkindsofsegetreatmentssuchasoxidationpondsarecarriedoutbasedonthelocalconditionsandtopographicalfeatures,andfinallythecorrespondingschemeisputforward
    ResearchandApplicationofEcologicalTreatmentofRuralDomesticWastewater
    WANGLin, LIRan, PENGLi
    2018, 34(5):  51.  doi:10.3969/j.issn.1009-0479.2018.05.010
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    Thepapershasanalyzedtheprocessandapplicationofdomesticwastewatertreatmentinruralareas.Itfocusesonthecomparisonofseveraltreatmentsuchas“fiverings”ACGMP(anaerobic,constructedwetlands,geneticengineeringofrice,microorganism,pond)sewagetreatmentsystem,artificialecologicalwetlandtechnology,soilinfiltrationtreatmentsystem,towerearthwormecofiltersystem,under
    groundmicropoweredoxidationditchwastewatertreatment.Throughtheanalysisontheadvantagesanddisadvantagesofeachofthetreatments,itcouldgiveinsighttotheecologicaltreatmentofdomesticsewageinruralareas
    AnalysisonImprovingtheQualityandEfficiencyoftheKunmingNo.3WaterPurificationPlant
    RENYouchang1, ZHAODeshuang2, CHENGYongwei1, PENGYi
    2018, 34(5):  56.  doi:10.3969/j.issn.1009-0479.2018.05.011
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    ThispaperfocusesonanalyzingtheoperationconditionoftheKunmingNo.3WaterPurificationPlantin217,andcalculatingpollutantreductionsuchasN,P,etc.afterimplementingClass-AandClass-BdischargelimitsipulatedonDischargeLimitsofMajorWaterPollutantsofKunmingMunicipalSewageTreatmentPlant.ItisconcludedthatitcanincreaseamountofTNreduction327.86tandTPreduction3.14tonthebasisofpollutantreductionin2017whileClass-AdischargestandardisimplementedbytheKunmingNo.3WaterPurificationPlant;anditcanincreaseamountofTNreduction25.66twhileimplementingofClass-Bdischargestandard,butitcannotincreaseamountofTPreduction.Therefore,itisadvisedtotakeClass-Adischargelimitastheupgradingtargetofaforementionedwaterpurificationplanthttp: //dict.youdao.com/w/aforementioned/javascript:void(0);.Atthesametime,thepaperdiscussesimprovingmethodsofP-removalandmeasuresforimprovingthequality
    andefficiencyofthesewagetreatmentsystem.Itisthereferenceforupgradinginnovationofwaterpurificationplant.
    KineticsandThermodynamicsforIonExchangeofFormicAcidonWeakBasicAnionExchangeResin330
    LIDongli, TANYanxia, WANGPeng, ZHULin
    2018, 34(5):  62.  doi:10.3969/j.issn.1009-0479.2018.05.012
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    Theformicacidinwaterwasseparatedbyweakbasicanion-exchangeresin330.Thedynamicsandthermodynamicsoftheadsorptionprocessofformicacidwereinvestigated.Thermodynamicresultsindicatedthattheadsorptionprocedurewasaspontaneousexothermicprocedure.Alowertemperatureisadvantageoustotheadsorption.ThekineticsresultsshowedthatthepseudosecondorderequationcoulddescribethesorptionprocessexactlyandtheadsorptivebalancedatawerecorrelatedwelltoFreundlichequation.Therateofadsorptionismainlycontrolledbythefilm diffusion.Theexperimentalresultsprovidesometheoreticalguidancefortheseparationoflowconcentrationformicacidindifferentsystems.
    AnalysisandImprovementMeasuresoftheMedianStripSightDistanceofaHighwayinYunnanProvince
    PENGYi1, XUDawei2, TIANBijiang2, CHENGYongwei
    2018, 34(5):  68.  doi:10.3969/j.issn.1009-0479.2018.05.013
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    Intheprocessofdesignandoperationofhighways,therightlateralcleardistancecangenerallymeettherequirementofsightdistance,buttheleftlateralcleardistancemaynotduringparkingbecauseoftheimpedimentfrommedianstrips,whichtherefore,needscorrespondingattentionfromhighwaymanagementadministrations.Tosolveproblemofthiskind,thepaperhastakentheconstructionprojectofahighwayinYunnanProvinceasanexample.Lateralcleardistancecalculationmethodandthesightdistanceenvelopediagramareusedtocheckthemedianstripsightdistanceintheantiglareplantsandantiplates.Thispaperanalyzestheshortageofthedesignofmedianstripsondividedhighwaysandtheleftsightdistanceimpediments,andputsforwardcorrespondingengineeringmeasuresforreferenceforsimilarprojects,includingadjustingthealignmentindicator,increasingthewidthofthemedianstrips,adoptingspeedcontrolmeasures,andchangingthewayofantiglare,etc
    OntheDrivingSightDistanceastheQualityIndexofHighwayUse
    LIUHongbo
    2018, 34(5):  73.  doi:10.3969/j.issn.1009-0479.2018.05.014
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    Sightdistanceisthenecessarysafedistancefordriverstotravelontheroad.Theimportanceofdrivingsightdistanceasaqualityindexofroadusehasbeenexpoundedtofurtherclarifytheimporanceofparkingsightdistaceintheroaddrivingprocess.Referringtothereasonablecalculationmethodandcombiningwiththerequirementsofthecode,thedataofvariousinfluencingfactorsarecomparedtodeterminetheinfluenceofvariousfactorsintheparkingsightdistance.Throughthecomparisonofconclusions,itisfoundthatthecalculationofsightdistancecannotadoptasingleanddogmaticfixeddesignvalue,butshouldcomprehensivelyconsidertheinfluenceofspeed,reactiontime,frictioncoefficient,longitudinalslopeandsomeotherfactors.Separatedanalysisandcalculationonsightdistanceshouldbeconductedinspecialsections,andsomepracticalandeffectivelytargetedmeasuresonensuringdrivingsafetyarethenputforard
    ExperimentalStudyontheStrengthofCementedTailingsandWasteRockBackfill
    LUPing
    2018, 34(5):  77.  doi:10.3969/j.issn.1009-0479.2018.05.015
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    AlargenumberoftailingsandwasterocksinthewastedumpfoundationofametalmineinYunnanProvincearedifficulttocleanup,resultinginpoorstabilityofthefoundation.Themethodofgroutingreinforcedbodiesisproposed.Inordertogetthebasicparametersofgroutingreinforcementandreducetheblindnessoftheconstruction,thesimulateexperimentofthecementedstrengthwascarriedoutindoors.Thecompressionstrengthandshearstrengthexperimentswerecarriedoutoncemented
    tailingswithdifferentagesandoncementedwasterockswithdifferentwatercementratio,andtheanalysisontheirstrengthcharaceristicswasalsoconducted.Atthesametime,therelationshipbetweeninfluencingfactorsandstrengththatcanprovideareferenceforpracticalengineeringapplicationisestablishedviathenondimensionalanalysismethod.
    PerformanceAnalysisofHydraulicHybridVehicleBasedonRuleEnergyManagementStrategy
    ZHOUPeng1, YANGJing2, KANGNan2
    2018, 34(5):  82.  doi:10.3969/j.issn.1009-0479.2018.05.016
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    Themathematicalmodelswereestablishedbasedonthekeycomponentsofthetraditionalvehicleandhydraulichybridvehicle.ThesimulationmodelwasbuiltundertheMatlab/Simulinkplatform.Theenergymanagementstrategybasedonruleswereproposedandanalyzedandfourmodesweredesignedcorrespondingly.ThecontrollogicofitsmodeswereimplementedintheSTATEFLOW module.Simulationresultsshowedthattheprogramcouldmeetthetotalpowerdemandsandtheengineraninthebestfueleconomyarea.Thefueleconomyofthehydraulichybridvehiclewasimprovedbycomparingfueleconomycurves
    DesignandOptimizationofHubspokeExpressNetwork
    DUANLimei
    2018, 34(5):  89.  doi:10.3969/j.issn.1009-0479.2018.05.017
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    Consideringthetransportmodesofexpressnetworkscouldbeimpactedbydifferenttrafficconditions,differenttransportmodesareconvertedintothediscountfactormatrixeswithrespecttothetrunklinenetworkincludedinthehubspokenetwork.Tominimizethetotalnetworkcost,singleallocationhubspokenetworkmodelisimproved.Theresultsfromthreenuericalexamplesdemonstratethattheef
    fectivenessofthehubspokeexpressnetworkmodel,theimpactontotalnetworkcostsbythegivennumerofhubs,andtheimpactonexpressdeliverynetworkbythechangesofdiscountfactormatrix.
    OrganizationandImplementationofCaseTeachinginDigitalTopography
    CHENGXiaojun, LIUChun, WUHangbi
    2018, 34(5):  95.  doi:10.3969/j.issn.1009-0479.2018.05.018
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    Basedontheanalysisofcourseknowledge,DigitalTopographydesignscaseteaching,drivenbyproblems,withstudentsasthemainbodyandteachersastheguidingrole,encouragingstudentstothinkindependently,strengtheningcommunicationbetweenteachersandstudents,andcomprehensivelypromotingstudentsprofessionalqualityandability.Theresultsfromtheimplementationprocessareevaluatedthroughactualteachingconduct.