Rock Strata Control Simulation Technology知到智慧樹期末考試答案題庫2025年太原理工大學

RockStrataControlSimulationTechnology知到智慧樹期末考試答案題庫2025年太原理工大學Withtheenhancementoftheconsciousnessofenvironmentalprotectionandtheconceptofsustainableeconomicdevelopment,thegreenminingtechnologyofcoalmineisproposed,whichdoesnotinclude（）.

答案:AdvancedsupporttechnologyWhichofthefollowingsoftwareisnotbasedondiscreteelementmethod（）.

答案:ANSYSWhichofthefollowingoptionsshouldnotbeconsideredintheselectionofresistancestraingauge.（）

答案:HardnessofmaterialWhichofthefollowingoptionsshouldnotbeconsideredintheselectionofresistancestraingauge?（）

答案:HardnessofmaterialWhichofthefollowingmethodsismechanical?（）

答案:DialindicatormethodWhichofthefollowingiswrongaboutUDEC?（）

答案:TheUDECcalculationpreparationprocessiscomplexWhichofthefollowingiswrongaboutUDEC（）.

答案:TheUDECcalculationpreparationprocessiscomplexWhichofthefollowingisthefundamentaldimensionunitofaforcesystem（）.

答案:[L]；[F]；[T]Whichofthefollowingisnottheapplicationareaoffiniteelementmethod（）.

答案:entertainmentWhichofthefollowingisnottheadvantagesofthefiniteelementmethod?（）

答案:GoodathandlingrigidandflexiblecontactproblemsWhichofthefollowingisnotanindicationoftheimportanceofphysicalsimulationtechniques（）.

答案:PhysicalsimulationtechnologycanaccuratelyandcompletelysimulatethelawoforepressureactivityWhichofthefollowingisnotanadvantageoftheelectricalmethod?（）

答案:SimpleequipmentWhichofthefollowingisnotatypeofmeasurementmethod（）.

答案:instrumentalmethodWhichofthefollowingisnotanondeterministicanalysismethod（）.

答案:ThediscreteelementmethodWhichofthefollowingisnotamediumcondition（）.

答案:geometricdimensionWhichofthefollowingisnotafeatureofdiscreteelementmethod?（）

答案:NotmuchinthefieldofapplicationWhichofthefollowingisnotacommonnumericalmethod（）.

答案:TheinfiniteelementmethodWhichofthefollowingisaggregate（）

答案:Sand；BrokensawdustWhichofthefollowingisaboundarycondition（）.

答案:stressWhichofthefollowingfallsunderthephysicalsimilaritycategory（）

答案:time；BulkdensityWhichofthefollowingdoesnotbelongtothecategoryofgeometricsimilarity（）.

答案:bulkdensityWhichofthefollowingdoesnotbelongtothebasicdimensionunitofaqualitysystem（）.

答案:[F]Whichofthefollowingdoesnotbelongtophysicalsimilarity（）.

答案:lengthWhichofthefollowingarethebasicunitsofqualitysystemdimension（）

答案:[L]；[M]；[T]Whichofthefollowingaremediaconditions（）

答案:Poisson’sratio；compressivestrengthWhichofthefollowingaredrawbacksofdioramas（）

答案:heavyworkload；Processtrival；Dryhard；ObservationisnotintuitiveWhichofthefollowingarecorrect（）

答案:Finiteelementmethodcansimulatethesolutiondomainofcomplexgeometry；Thefinitedifferencemethodisanapproximatenumericalsolutionwhichdirectlytransformsthedifferentialproblemintoanalgebraicproblem.；TheboundaryelementmethodisbetterthanthefiniteelementmethodforstressconcentrationproblemsWhichofthefollowingareboundaryconditions（）.

答案:stress；displacementWhichbusinessprogramisnotbasedonfiniteelementmethod?（）

答案:UDECWhenusing（）toguidemodelresearch,thefirstimportantthingistoderivethesimilaritycriterion.

答案:ThefirsttheoremofsimilarityWhenthenumberoflayerslaidbythephysicalsimilaritymodelreachesthesurfacedirectly,noadditionalforceisrequired.（）

答案:對Whenthemoisturecontentisreducedtomakethemechanicalpropertiesofthematerialstable,themodelexcavationorcuttingcanbecarriedoutonlyafterthehumidityislessthan（）.

答案:20%Whenthediplengthoftheworkingfaceisapproximatelyinfiniteinrelationtothetransversesizeoftheroadway,thesectioncanbetakenperpendiculartotheadvancingdirectionoftheworkingfacetoestablishaplanestrainmodelforstudy.（）

答案:對Whenconductingsimulationexperiments,（）isusuallyusedtomakemodels.

答案:ReduceorenlargethescaleWhattwojointgeneratorsdoUDECprovide:（）

答案:statisticaljointgenerator；VoronoisectionedjointgeneratorWhatshouldbedonebeforesettingupthesurveyline（）

答案:Anchorsarelaidinthehaulagelane；ApplyboundaryconditionsandinitialconditionsWhatneedstohappenafterthemodelismined（）

答案:outputdisplacementnephogram；Outputstressnephogram；Outputdisplacementcurve；OutputstresscurveWhatiswrongwiththeuncellmethodis（）.

答案:HasadependencyonthegridWhatistheresultoftheformationoftopcoalfragmentation（）.

答案:abutmentpressureoftheoverburdenstratum；rotarydeformationofthemainroof；repeatedsupportofthesupportsWhatfactorsarerelatedtothefracturemechanismofoverlyingrockmassinstope（）.

答案:Rocklithology；Burieddepth；Coalseamthickness；MiningmethodWhatdeterminesthesizeofrockcollapse（）.

答案:Theintensityofrock；weightbyvolume；Thethicknessofthecollapse；DistancefromthegroundWhatcanbeusedtoincreasetheplasticityofthematerial（）.

答案:clayWhatarethefollowingaspectsobservedinthemodel?（）

答案:Measurementofmodeldeformation(relativedisplacement)；Measurementofabsolutedisplacementofthemodel；MeasurementofinternalstressofthemodelWhatarethedisadvantagesofgypsummaterials（）.

答案:Easytoabsorbmoisture,materialstrengthwillbereduced；Thestrengthofsimilarmaterialsissensitivetogypsumdosage,whichisnoteasytocontrolWhatarethecharacteristicsofsimilarsimulationtechnology（）.

答案:IntuitiveWhataretheadvantagesofthemechanicalmethod?（）

答案:simpleequipment；strongabilitytoresistexternalinterference；stabilityandsecurityUsually1-2daysafterthemodelismade,themoldcanberemoved.Iftheclimateiscloudyandwet,themoldremovaltimecanbeappropriatelyextended.Whenremovingthetemplate,attentionshouldbepaidnottodamagethemodel.（）

答案:對UDECprovides（）jointgenerators.

答案:2UDECiswellsuitedforstudyingpotentialfailuremodesthataredirectlyrelatedtodiscontinuouscharacteristics.（）

答案:對UDEChasseveralcommandsforgeneratingthegeometryofthecalculationmodel.Thetwomaincommandsforgeneratinggeologicalstructures(namely,joints)areasfollows:（）

答案:crack；jsetUDECactuallyimposesastresscomponentasaforceorafrictionforcethatproducesastresstensoractingonagivenboundaryplane.Frictioncanbedividedintotwocomponents:permanentfrictionandinstantaneousfriction.（）

答案:對Typetunnelfirstandthencrackack.Thecrackdoesnotpenetratethroughthetunnel.（）

答案:對Twotypesofsimilarmaterialmodelloading:（）

答案:Self-weightsimulation；TectonicstresssimulationTunnelexcavationcanalsobeachievedbydeletingtheblocknumberorthecentroidpositionoftheblock.（）

答案:對ThreemethodsforsimulationofloadweightofSimilarMaterialModel（）

答案:Usingtheweightofequivalentmaterialitselftosimulateselfweight；Applyingsurfaceforcetosimulateselfweight；ExertingphysicalforcetosimulateselfweightThereisnoconstraintbeforeandafterthemodel,andlateraldeformationisallowed.（）

答案:stressmodelframeThesystemunitofDensityis（）.

答案:kg/m3Thesimilaritysimulationmethodhastheadvantagesofintuitionistic,simple,economical,rapidandshortexperimentperiod.（）

答案:對Thesimilaritycriterioncanberegardedas（）.

答案:invariantThesimilaritycriterioncanbedeterminedbyusingπtheoremthroughdimensionalanalysis.（）

答案:對Theselectionofthemodellayeringschemeshouldstrictlyabidebytheprincipleofthechoiceofsimulatedformation:（）

答案:Thelayeredlayingthicknessofthemodelis1cm.Ifthesimulatedstratumthicknessislessthan0.3m,acomprehensiveselectionshouldbemade.；Thestratawithsimilarlithologyshouldbeintegrated,andtheweightedaveragelithologyparametershouldbetaken.；Theinterfaceoftherockformationshouldbestrictlydetermined.Theselectionoforthogonaltablemainlyconsidersthreeaspects:（）

答案:thefactorsexaminedandthenumberofbitlevelsofeachfactor；thenumberoftimesofeachbatchoftests；whethertherearekeyfactorsTheresultsofsimilarsimulationexperimentsareasfollows:（）

答案:thefamoustheoryof“blockgirder”；thelawoftheformationof“triplezones”oftheoverlyingstratacausedbyundergroundmining；thelawofstratabehaviorandrockfractureTheplanestressmodelisrelativelysimple,anditswidthisaslongasitcankeepthetransversestabilityofthemodel.Generally,thewidthofthemodelheightis（）.

答案:1/8～1/5ThePFCdampingcoefficientisdimensionless.（）

答案:對Theoverburdenstructuremodelmainlystudiesthedeformationcharacteristicsandmovementrulesofsinglekeystrataintheminingprocess,verifiesthefractureandinstabilityformsofoverburdenrockmassstructure,andsummarizesthedisplacementandstresschangerulesofoverburdenstructure.（）

答案:對Thenextstepofagitationinmakingthemodelis（）.

答案:InstallationtemplateThenextstepinthemixingprocessformakingamodelis（）.

答案:materialratioThenecessaryandsufficientconditionforphenomenonsimilarityis（）.

答案:TheThirdSimilarityTheoremThemostefficientplasticmodelis（）.

答案:D-Pmodel；M-CmodelThemostcommonlyusedmodelsfordeformedblocksinUDECareasfollows:（）

答案:changecons=0;nullmodelchangechange；cons=1;elasticmodelchange；cons=3;Mohr-coulombmodelThemore()thefilletlengthis,themore()theinitialunbalanceforceis.（）.

答案:Big,bigThemodelstandusuallyconsistsof（）.

答案:majorstructure；Loadingsystem；MeasurementsystemThemodelislayeredwithmicapowdertoabsorbmoisture.（）

答案:錯Themodelisanartificiallyshapedentityinthelaboratoryforstudyingthemechanicalpropertiesoftheprototype,whichisanapproximationoftheprototype.（）

答案:對Themodelframeisusuallycomposedofmainstructure,loadingsystemandmeasuringsystem.（）

答案:對Themechanicalpropertiesofmaterialscanbechangedbychangingtheratioofmaterials.（）

答案:對Themechanicalparametersoftheinterfacebetweenoverburdenandcoalstrataaredeterminedaccordingtothephysicalandmechanicaltestdatainlaboratoryandfield.（）

答案:對Themeasurementaccuracyofthedialindicatormethodisnothigh,moretimeandmanpowerareneededwhenthemulti-pointmeasurementisarranged.（）

答案:對Themainstepsoffiniteelementmethodtosolvetheprobleminclude（）.

答案:Structurediscrete,unitanalysis,integralanalysis；Loadshifting,boundaryconditionprocessing,solvinglinearequation；Solvingelementstressandstrain,resultprocessinganddisplayThelargertheparticlesizeofsand,thesmallerthestrengthandelasticmodulusofthematerial.（）

答案:錯Theinhomogeneityofinitialstressstatespacecan'tbesimulatedinjointedandfissuredmedia.（）

答案:錯Thegeometricsimilarityratioofnumericalsimulationis1:1.（）

答案:對Thefollowingstatementaboutmechanicalstraingaugeiscorrect.（）

答案:canreaditdirectlyThefollowingsimilaritytheoryis（）.

答案:thesecondsimilaritytheorem；TheFirstTheoremofSimilarityThefollowingmaterialswhichcannotsimulatethestratificationplaneofrockare（）.

答案:powderedbariteThefollowingmaterialsthatarenotaggregateare（）.

答案:LimeThefollowingmaterialsarethecementingmaterials（）.

答案:gypsum；liquidglass；cement；kaolinclayThefollowingbelongingtothecategoryofsingle-valuedconditionsare（）.

答案:Geometricconditions；mediumconditions；boundaryconditions；initialconditionsThefollowinganalysismethodsareincorrectlyclassifiedas（）.

答案:DiscontinuousdeformationanalysisisanondeterministicmethodTheFirstTheoremofSimilaritysatisfiesseveralconditions（）.

答案:2Thefirsttheoremofsimilarityandthesecondtheoremofsimilarityarethepropertiesaftersimilarity,whicharesufficientconditionsforsimilarityofphenomena.（）

答案:錯Thefirststepofphysicalsimilaritysimulationtodeterminegeometricsimilarityratioistocalculatethelocationofkeylayers,determinethenumberandpositionofsimulatedlayers,andcalculatetheheightofsimulatedcoalstrata.（）

答案:對Thefiniteelementmethoddoesnotneedtomeshthemodelinstructuraldiscrete.（）

答案:錯Theequivalentmaterialmodeltestsystemconsistsoftwoparts:arigformodeltestsandatestanddataacquisitionsystem.（）

答案:對TheengineeringstructureshapeisformedbycuttingtheUDECblock,whichneedstobecarriedoutbeforetheexcavationoftheproject.（）commandsaretypicallyusedtogenerateshapes.

答案:threeTheelectricmeasurementmethodhastheadvantagesof（）.

答案:highmeasurementaccuracy；easytointerfacewithall-purposeinstrumentsandsignalprocessingequipment；continuousmeasurementandrecordingformanytimesThedisadvantageofthemechanicalmethodisthattheequipmentistoocomplicated.（）

答案:錯Thedisadvantageofsimilaritysimulationisthattheexperimentcycleistoolong.（）

答案:錯ThedevelopmentofTHREE-DIMENSIONALdiscreteelementislate.Somereasonsdonotinclude（）.

答案:SmallrangeofuseThedeterminationofmechanicalparametersofsimilarmaterialsincludes（）

答案:Unconfinedcompressivestrengthtest；Tensilestrengthtest；ShearstrengthtestThedeformationcharacteristicsoftheblockaredefinedbythefollowingcommand（）

答案:genedgev；genquadvThedeformationcharacteristicsofablockcanbedefinedbywhatcommand:（）

答案:genedgev；genquadvthecompositekeystratumisdividedintothemainkeystratumandtheinferiorkeystratum,andtheruptureoftheinferiorkeystratumislaterthanthatofthesinglekeystratum.（）

答案:對Thecommonlyusednumericalcalculationmethodsmainlyinclude（）.

答案:Thefiniteelementmethod；Theboundaryelementmethod；FinitedifferencemethodThecommandGen（）Visusedtospecifythemodelasaunitoftheplasticmaterialmodel.

答案:quadThecodeusedtocreatetheblockis:（）

答案:block；crack；jsetThechemicalcompositionofgroundwaterisgenerally（）

答案:majorions；dissolvedgases；biologicalproducts；radioactiveelementsTheboundaryelementmethodisdescribedincorrectlyby（）.

答案:TheboundaryelementmethodiscalledSPHThebasicprincipleofresistancestrainmeasurementisthattheresistancestraingaugeisusedasthedetector.（）

答案:對Thebasiccommandsforcuttingblocksaremissing（）.

答案:ROUNDTheaveragebulkdensityofthemixtureofsandasaggregateandgypsumandlimeascementis（）g/cm3.

答案:2.5Thearccommandmustmatchthecrackackcommand,butthe（）commandcanbedisplayedasacircledirectlyaftertyping.

答案:tunnelThe（）codeforhorizontalandverticalstresscurvesisasfollows.

答案:logSupposethataphysicalsystemhasnphysicalquantitiesandcontainsmdimensionsinthesequantities,thenthevalueofindependentsimilaritycriterionis（）.

答案:n-mStratacontrolsimulationtechnologyisdividedintolaboratoryequivalentmaterialsimulationandnumericalsimulation.（）

答案:對solveratio1e-5；Theunbalanceforceisrecordedandcalculateduntil（）reaches1e-5.

答案:precisionSincethenecessaryinformationinputfordesignpredictionislimited,geotechnicalnumericalmodelsaremainlyusedtoexplainthemechanicalmechanismsaffectingthesystemcharacteristicsandtoperformsimpleexploratorycalculationsforengineeringdesign.（）

答案:對Simulationresearchhascertainlimitations,becausethemechanicalpropertiesofrockmassandthelawoforepressureactivityarecomplicated,anditisdifficulttosimulatethemcompletelyandaccurately.（）

答案:對Similarsimulationisintheindooruseofsomeartificialmaterials,accordingtothesimilarityprincipletomakeasimilarmodel,themodelisbasedonthe（）toshape.

答案:ThesimulatedprototypeSimilarmaterialsmustmeetthefollowingrequirements（）.

答案:Thematerialsshouldhavestablemechanicalproperties,whicharenoteasytobeaffectedbytheexternalconditions(humidity,temperature,etc.)；Thematerialsshouldbeeasytotakeshapeanduse,andtheycanbesolidifiedwithinashorttime.；Thematerialsshouldbeeasytomeasure(includingstickingstraingauge),etc.；Thematerialsshouldbereusedwithwidesourcesandlowcost.setlogf:\yuanyan.log[Importdataintothefilenamed"Yuanyan"ondiskF].（）

答案:對Selectsimilarmaterialsbasedonthefollowingprinciples（）.

答案:Themainphysicalandmechanicalpropertiesofthemodelmaterialsaresimilartothecorrespondingpartsoftheprototypematerials；Themechanicalindexisstable,andthemechanicalpropertieswillnotchangebecauseofchangesinatmospherictemperatureandhumidity；Afterchangingtheratio,themechanicalindexcanbegreatlychangedforselection；ConvenientformanufacturewithshortsettingtimeandsimplelayingSandandpolystyrenecanbeusedtoreducethePoisson'sratioofthematerial.（）

答案:對RFPA(2D)workingproceduresdonotinclude（）.

答案:NoneedtoanalyzeResistancestraingaugeisthemaincomponentofelectricalmeasurementmethod.（）

答案:對resetdisp；Aftertheoriginalequilibriumofthemodel,thedisplacementbecomes（）.

答案:0propmatjsup_kn-1；sup_knreferstothebracket（）,-1correspondstoTable1.

答案:stiffnessprintpline2xdis[Recordtheverticaldisplacementofline2].（）

答案:錯printplin1ydisp；Intheydirection（）.

答案:displacementPlanemodelcanbedividedintoplanestressmodelandplanestrainmodelaccordingtodifferentconstraintsonbothsides.（）

答案:對Physicalsimilaritysimulationversusnumericalsimulationwhatneedstobedoneinthematerialgatheringstep（）

答案:Thecomprehensivehistogramofcoalandrockstratawasobtainedbyanalyzinggeologicalconditions；Thephysicalandmechanicalpropertiesofrockareobtainedthroughexperiments；UnderstandthegeologyanddeterminethegoalsandproblemsofthesimulationPhysicalsimilaritysimulationversusnumericalsimulationwhatneedstobedoneinthematerialgatheringstep（）.

答案:Analysisofgeologicalconditions,obtainthecomprehensivehistogramofcoalandrockstrata；Obtainthephysicalandmechanicalpropertiesofrockarethroughexperiments；Getageologicaloverview,identifythegoalsandproblemsofthesimulationPhysicalsimilaritysimulationdeterminestheprinciplesthatsimilarmaterialsneedtofollow（）.

答案:Whenthesimilarmaterialsareselected,themainphysicalandmechanicalpropertiesofthecorrespondingpartsofthemodelandprototypeshouldbesimilar.；Themechanicalpropertiesofthematerialarestableandnoteasilyaffectedbyenvironmentalchanges.；Materialsshouldbeeasytoobtain,easytomanufacture,easytolay.；Whentheratioofmixedmaterialsischanged,itsmechanicalpropertiescanbegreatlychanged.Physicalsimilaritysimulationdeterminestheprinciplesthatsimilarmaterialsneedtofollow（）

答案:Whenthesimilarmaterialsareselected,themainphysicalandmechanicalpropertiesofthecorrespondingpartsofthemodelandprototypeshouldbesimilar；Themechanicalpropertiesofthematerialarestableandnoteasilyaffectedbyenvironmentalchanges；Materialsshouldbeeasytoobtain,easytomanufacture,easytolay；Whentheratioofmixedmaterialsischanged,itsmechanicalpropertiescanbegreatlychangedPhysicalsimilaritysimulationandnumericalsimulationarethesameinthematerialcollectionstep.（）

答案:對Physicalphenomenaandlawsarerelatedtotheunitsofmeasurementchosen.（）

答案:錯Otherkeywords（）relativetotheJSETcommandcanalsobeusedtorestrictblocksfrombeingcut.

答案:rangeOnceblockcuttingiscompleted,materialpropertiesmustbeassignedtoallblocksanddiscontinuities.（）

答案:對Ofthefollowingmeasurementmethods,theleastaccurateis（）.

答案:DialindicatormethodNumericalsimulationtechnologycommonlyusednumericalcalculationmethodsaremainly:（）

答案:Finitedifferencemethod；Thefiniteelementmethod；Theboundaryelementmethod；TherigidbodyelementmethodNumericalsimulationcannotonlysimulatethecomplexmechanicalandstructuralcharacteristicsofrockmass,butalsoconvenientlyanalyzevariousboundaryvalueproblems.（）

答案:對Numericalmechanicalanalysishasbecomeaconventionalmeanstosolvecomplexengineeringanalysisproblems.（）

答案:Findacertainreliableconstructionschemenumericalanalysismethodsmainlyincludeanalysisofcertaintymethodsandanalysisofuncertaintymethods.（）

答案:對Numericalanalysismethodsmainlyincludeanalysisofcertaintymethodsandanalysisofuncertaintymethods.（）

答案:對Moiremethodisanewmethodofexperimentalstressanalysis.Itisanopticalmethodtomeasurethedisplacementfieldandstrainfieldbyusingtwogroupsofgratinginterferencetogeneratedisplacementmap.（）

答案:對Modelmonitoringinstrumentsmainlyinclude（）.

答案:displacementmeter；digitalhighspeedstraingauge；metalstrainsensorsModellayerscanbesimulatedbyspreadingalayer（）betweenlayers.

答案:micapowderMiningengineersaremoreconcernedabouttheproblemcanbebasicallydividedintotwocategories:thecontrolofthesurroundingrockandthecontrolproblemoftheroadway’ssurroundingrock.（）

答案:對Micapowdercanincreasethethermoconductivityofthematerials.（）

答案:錯Metalstrainsensorscannotmonitorlongitudinalhorizondisplacement.（）

答案:錯Mechanicalmethodhasthecharacteristicsof（）.

答案:strongabilitytoresistexternalinterferenceItsvvaluedefinesthe（）ofthetriangularelement,namely,thesmallerthevvalueis,thesmallertheelementintheblockis.

答案:ThelargestlengthItisveryeasytodeterminewhetherthestressstateformedinthejointmodelrepresentstheinitialstate.（）

答案:錯Itisnecessarytocomprehensivelyconsiderthestress,strainandfailureofrockmassandrelatedstructuresinordertofullyunderstandtherelevantlawswhenstudyingsimulationmodels.（）

答案:對Itisimpossibletoconstructdetailedmodelsthatdirectlygeneratedesigninformationifsufficientdataisobtainedfromthefield.（）

答案:錯InwhichcaseUDECwilltakealongtimetoconverge:（）.

答案:Therigiditiesorpropertiesoftheblockmaterialandthejointmaterialarequitedifferent；Thereisabigdifferenceinblockorunitsize.Inuniaxialcompressivestrengthtests,theelasticmodulusEcanbeobtainedfromthestress-straincurveofthespecimen.（）

答案:對Inthestudyofthree-dimensionalproblemsinundergroundspace,need（）.

答案:three-dimensionalmodelframeInthesimulationstudyofrockformationcontrol,thefollowingoptionisnottheroleofsimulationexperiment（）.

答案:AccurateandcompletesimulationoforepressureactivityInthesimulationexperiment,plasticfilmscanbeplacedonbothsidesofthemodelframetoreducefriction.（）

答案:對Inthepreparationofsimilarmaterialmodel,thetotalamountofwaterrequiredislarge,andtheamountofboraxaddedisalsolarge.Atthistime,whatmethodcanbeadoptedtoacceleratethedissolutionofboraxinwater（）

答案:heating；stirInthenumericalsimulation,theworkingfacecanbeexcavatedatonetimeinsteadofbystepasinthephysicalsimulation.（）

答案:錯Inthenumericalmodel,theboundaryisdividedintotwotypes:（）

答案:actual；artificialInrecentyears,withthecontinuousimprovementofengineeringdesignandscientificresearchrequirementsandtherapiddevelopmentofcomputercomputingcapability,numericalmechanicalanalysishasbecomeaconventionalmeanstosolvecomplexengineeringanalysisproblems.Itsmainfunctionsareshowninthefollowingaspects（）.

答案:Tostudytheinternalmechanicsmechanismofengineeringproblems；Increasedengineeringandproductreliability；IdentifypotentialproblemsduringtheengineeringandproductdesignphasesInphysicalsimilaritysimulationexperiments,micapowderisoftenusedtosimulatediscontinuitiesbetweenlayers.（）

答案:對Inordertomeettheneedsofstudyinginclinedstratasimulationexperiment,（）shouldbeused.

答案:swivelmodelframeInordertomeettheneedofstudyinginclinedstratasimulationexperiment,theplanerotatingmodelframeshouldbeused.（）

答案:對Inordertomakethebulkdensityofthemodelmaterialchangewithinacertainrangetomeettherequirementsofvariousrocks,various（）.

答案:AggregatesInordertoensuretheuniformhumidityinthemodelduringtheexperiment,itcanbeprotectedwith（）inthemoldremovaltopreventtheevaporationofwaterandthechangeofstrength.

答案:vinylresinandepoxyresinInordertodeterminethecollapseload,"straincontrol"boundaryconditionsareoftenusedinsteadof"stresscontrol",thatis,applyingconstantspeedandmonitoringboundaryreactionforcesinsteadofapplyingforceandmonitoringdisplacement.（）

答案:對Innumericalsimulation,themodelboundaryeffectshouldbeconsideredandsaintVenant'sprincipleused.（）

答案:對Incivilengineering,transportation,miningengineering,waterconservancyandhydropowerandotherfields,thematerialsinvolvedhave（）andothercharacteristics.

答案:Speciesdiversity；Mediumformpluralism；TheirregularityofgeometricformsIfthesimulationislocatedinthedeepundergroundspace,themodelheightisnotenoughtosimulatethefullburieddepth,soitneedstobeloadedatthetopofthemodel.（）

答案:對Ifthesimulatedstratumthicknessislessthan()m,acomprehensiveselectionshouldbemade:（）.

答案:0.3Ifthesimulatedstratumthicknessislessthan（）m,acomprehensiveselectionshouldbemade.

答案:0.3Ifthesimulatedprototypeiscomposedofmultiplelayersofrock,thestrengthindexofthesimulatedrockshouldbecalculatedlayerbylayer.（）

答案:對Ifthemechanicalpropertiesofrockmassareaccuratelygraspedmacroscopicallyandthein-situstressfieldisgraspedbyin-situstresstesting,theresultsofnumericalmechanicsanalysisarenotreliable.（）

答案:錯Ifanattemptismadetoinvolvecomplexconditionspresentintheactualmodel,computationalfeaturesthatmayhaveanegligibleeffectonthemodelresponseorareirrelevanttothepurposeofthemodelcalculationscan'tbeignored.（）

答案:錯Horizontalstresscalculationisusuallyexpressedbymultiplyingthelateralpressurecoefficientby（）whenhorizontalconstraintsareappliedtotheleftandrightboundariesofthemodel.

答案:ThetangentialstressGenerallyspeaking,inthestageofcoalseammining,thefirstpressingstepofsinglekeystratumislessthanthatofcompositekeystratum.（）

答案:對Functionsofnumericalsimulationresearch:（）

答案:Thesimulatedphysicaltestprogrammereducedthenumberoftests,therebyreducingthecostoftests；Afteranalysisandcalculation,theoptimizeddesignschemeisadoptedtoreducethecostofengineeringandproducts；Determinethedesignschemeofengineeringproblemassoonaspossible,