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RockStrataControlSimulationTechnology知到智慧樹章節(jié)測試課后答案2024年秋太原理工大學第一章單元測試
Stratacontrolsimulationtechnologyisdividedintolaboratoryequivalentmaterialsimulationandnumericalsimulation.()
A:對B:錯
答案:對Thesimilaritysimulationmethodhastheadvantagesofintuitionistic,simple,economical,rapidandshortexperimentperiod.()
A:錯B:對
答案:對Miningengineersaremoreconcernedabouttheproblemcanbebasicallydividedintotwocategories:thecontrolofthesurroundingrockandthecontrolproblemoftheroadway’ssurroundingrock.()
A:對B:錯
答案:對Simulationresearchhascertainlimitations,becausethemechanicalpropertiesofrockmassandthelawoforepressureactivityarecomplicated,anditisdifficulttosimulatethemcompletelyandaccurately.()
A:對B:錯
答案:對Whatarethecharacteristicsofsimilarsimulationtechnology().
A:AccuracyB:ObjectivityC:IntuitiveD:Takealongtime
答案:IntuitiveWhichofthefollowingisnotacommonnumericalmethod().
A:ThefiniteelementmethodB:FinitedifferencemethodC:TheinfiniteelementmethodD:Theboundaryelementmethod
答案:TheinfiniteelementmethodInthesimulationstudyofrockformationcontrol,thefollowingoptionisnottheroleofsimulationexperiment().
A:TosolvesomerockmasspressureproblemswhichcannotbesolvedbytheoreticalanalysismethodatpresentB:ItprovidesvaluablereferencedataforindustrialtestC:AccurateandcompletesimulationoforepressureactivityD:Savemanpower,materialresourcesandworkinghours
答案:AccurateandcompletesimulationoforepressureactivityWhichofthefollowingisnotanindicationoftheimportanceofphysicalsimulationtechniques().
A:PhysicalsimulationtechnologycanaccuratelyandcompletelysimulatethelawoforepressureactivityB:Numericalsimulationresultsoftenneedtobecomparedorverifiedwithsimilarsimulationresults.C:Solvespecificcomplexproblems.D:Moderntechnologyrepresentedbyelectroniccomputersmakesphysicalsimulationtechnologymorereliable.
答案:PhysicalsimulationtechnologycanaccuratelyandcompletelysimulatethelawoforepressureactivityInrecentyears,withthecontinuousimprovementofengineeringdesignandscientificresearchrequirementsandtherapiddevelopmentofcomputercomputingcapability,numericalmechanicalanalysishasbecomeaconventionalmeanstosolvecomplexengineeringanalysisproblems.Itsmainfunctionsareshowninthefollowingaspects().
A:IncreasedengineeringandproductcostsB:TostudytheinternalmechanicsmechanismofengineeringproblemsC:IdentifypotentialproblemsduringtheengineeringandproductdesignphasesD:Increasedengineeringandproductreliability
答案:Tostudytheinternalmechanicsmechanismofengineeringproblems;Identifypotentialproblemsduringtheengineeringandproductdesignphases;IncreasedengineeringandproductreliabilityIncivilengineering,transportation,miningengineering,waterconservancyandhydropowerandotherfields,thematerialsinvolvedhave()andothercharacteristics.
A:scarcityB:TheirregularityofgeometricformsC:SpeciesdiversityD:Mediumformpluralism
答案:Theirregularityofgeometricforms;Speciesdiversity;Mediumformpluralism
第二章單元測試
Accordingtothecharacteristicsofsimilarityphenomenon,similaritycanbedividedintophysicalsimilarityandmathematicalsimilarity.()
A:對B:錯
答案:對Themodelisanartificiallyshapedentityinthelaboratoryforstudyingthemechanicalpropertiesoftheprototype,whichisanapproximationoftheprototype.()
A:錯B:對
答案:對Physicalphenomenaandlawsarerelatedtotheunitsofmeasurementchosen.()
A:對B:錯
答案:錯Thefirsttheoremofsimilarityandthesecondtheoremofsimilarityarethepropertiesaftersimilarity,whicharesufficientconditionsforsimilarityofphenomena.()
A:對B:錯
答案:錯Whenusing()toguidemodelresearch,thefirstimportantthingistoderivethesimilaritycriterion.
A:SinglevaluedconditionB:ThesecondtheoremofsimilarityC:ThethirdtheoremofsimilarityD:Thefirsttheoremofsimilarity
答案:ThefirsttheoremofsimilarityWhichofthefollowingdoesnotbelongtothecategoryofgeometricsimilarity().
A:bulkdensityB:LengthC:volumeD:area
答案:bulkdensityWhichofthefollowingdoesnotbelongtothebasicdimensionunitofaqualitysystem().
A:[F]B:[T]C:[L]D:[M]
答案:[F]Thesimilaritycriterioncanberegardedas().
A:invariantB:1C:constantD:variable
答案:invariantWhichofthefollowingisthefundamentaldimensionunitofaforcesystem().
A:[L]B:[M]C:[F]D:[T]
答案:[L];[F];[T]Thefollowingbelongingtothecategoryofsingle-valuedconditionsare().
A:GeometricconditionsB:boundaryconditionsC:initialconditionsD:mediumconditions
答案:Geometricconditions;boundaryconditions;initialconditions;mediumconditions
第三章單元測試
Claycanbeusedasbothaggregateandcementingmaterial.()
A:錯B:對
答案:對Themechanicalpropertiesofmaterialscanbechangedbychangingtheratioofmaterials.()
A:對B:錯
答案:對Thelargertheparticlesizeofsand,thesmallerthestrengthandelasticmodulusofthematerial.()
A:錯B:對
答案:錯Calciumcarbonateisaplasticmaterial.()
A:對B:錯
答案:錯CoarsemicawithadiameterofD=1.4~5mmshouldbeusedforthesimulationofweaksurfacessuchasinterlayercracksandjoints.()
A:錯B:對
答案:對Thefollowingmaterialsthatarenotaggregateare().
A:LimeB:MicapowderC:PowderedironD:tailings
答案:LimeWhatcanbeusedtoincreasetheplasticityofthematerial().
A:asphaltB:DiatomiteC:resinD:clay
答案:clayFinemicawithdiameterd=()mmshouldbeusedforseparationofmicapowder().
A:0.3~0.5B:0.1~0.3C:0.5~0.7D:0.7~0.9
答案:0.3~0.5Thefollowingmaterialsarethecementingmaterials().
A:gypsumB:cementC:liquidglassD:kaolinclay
答案:gypsum;cement;liquidglass;kaolinclayWhatarethedisadvantagesofgypsummaterials().
A:Easytoabsorbmoisture,materialstrengthwillbereducedB:UnstableperformanceC:Thestrengthofsimilarmaterialsissensitivetogypsumdosage,whichisnoteasytocontrolD:hardtoobtain
答案:Easytoabsorbmoisture,materialstrengthwillbereduced;Thestrengthofsimilarmaterialsissensitivetogypsumdosage,whichisnoteasytocontrol
第四章單元測試
Fortheresearchobjectofminerockpressure,themainloadisself-weightstress,followedbytectonicstress.()
A:錯B:對
答案:對Themodelframeisusuallycomposedofmainstructure,loadingsystemandmeasuringsystem.()
A:對B:錯
答案:對Planemodelcanbedividedintoplanestressmodelandplanestrainmodelaccordingtodifferentconstraintsonbothsides.()
A:錯B:對
答案:對Themodelislayeredwithmicapowdertoabsorbmoisture.()
A:錯B:對
答案:錯Inthestudyofthree-dimensionalproblemsinundergroundspace,need().
A:swivelmodelframeB:three-dimensionalmodelframeC:PlanestressmodelframeD:Planestrainmodelframe
答案:three-dimensionalmodelframeFortheresearchobjectofminerockpressure,themainloadis().
A:self-weightstressB:CompressivestressC:tectonicstressD:Tensilestress
答案:self-weightstressThenextstepofagitationinmakingthemodelis().
A:materialratioB:MeasurementC:InstallationtemplateD:Loading
答案:InstallationtemplateWhenthemoisturecontentisreducedtomakethemechanicalpropertiesofthematerialstable,themodelexcavationorcuttingcanbecarriedoutonlyafterthehumidityislessthan().
A:30%B:10%C:20%D:40%
答案:20%Atpresent,themodelframeusedinChinais().
A:PlanestressmodelframeB:three-dimensionalmodelframeC:swivelmodelframeD:Planestrainmodelframe
答案:Planestressmodelframe;three-dimensionalmodelframe;swivelmodelframe;PlanestrainmodelframeFortheresearchobjectofminerockmasspressure,theloadtobeconsideredis().
A:CompressivestressB:self-weightstressC:TensilestressD:tectonicstress
答案:self-weightstress;tectonicstress
第五章單元測試
Itisnecessarytocomprehensivelyconsiderthestress,strainandfailureofrockmassandrelatedstructuresinordertofullyunderstandtherelevantlawswhenstudyingsimulationmodels.()
A:錯B:對
答案:對Thedisadvantageofthemechanicalmethodisthattheequipmentistoocomplicated.()
A:對B:錯
答案:錯Resistancestraingaugeisthemaincomponentofelectricalmeasurementmethod.()
A:對B:錯
答案:對Moiremethodisanewmethodofexperimentalstressanalysis.Itisanopticalmethodtomeasurethedisplacementfieldandstrainfieldbyusingtwogroupsofgratinginterferencetogeneratedisplacementmap.()
A:對B:錯
答案:對Whichofthefollowingisnotatypeofmeasurementmethod().
A:MechanicalmethodB:instrumentalmethodC:PhotometricmethodD:Electrometricmethod
答案:instrumentalmethodWhichofthefollowingoptionsshouldnotbeconsideredintheselectionofresistancestraingauge.()
A:HardnessofmaterialB:MeasuretheworkingconditionoftheobjectC:StaticordynamicloadD:Long-termobservationorshort-termmeasurement
答案:HardnessofmaterialWhichofthefollowingmethodsismechanical?()
A:levelinstrumentmeasurementmethodB:lasermeasurementmethodC:DialindicatormethodD:photographicdisplacementmethod
答案:DialindicatormethodWhichofthefollowingisnotanadvantageoftheelectricalmethod?()
A:continuousmeasurementandrecordingformanytimesB:easytointerfacewithall-purposeinstrumentsandsignalprocessingequipmentC:highmeasurementaccuracyD:Simpleequipment
答案:SimpleequipmentWhatarethefollowingaspectsobservedinthemodel?()
A:Measurementofmodeldeformation(relativedisplacement)B:MeasurementofinternalstressofthemodelC:MaximumloadvalueofsupportD:Measurementofabsolutedisplacementofthemodel
答案:Measurementofmodeldeformation(relativedisplacement);Measurementofinternalstressofthemodel;MeasurementofabsolutedisplacementofthemodelWhataretheadvantagesofthemechanicalmethod?()
A:needofpowersupplyB:simpleequipmentC:stabilityandsecurityD:strongabilitytoresistexternalinterference
答案:simpleequipment;stabilityandsecurity;strongabilitytoresistexternalinterference
第六章單元測試
Generallyspeaking,inthestageofcoalseammining,thefirstpressingstepofsinglekeystratumislessthanthatofcompositekeystratum.()
A:對B:錯
答案:對Theequivalentmaterialmodeltestsystemconsistsoftwoparts:arigformodeltestsandatestanddataacquisitionsystem.()
A:對B:錯
答案:對Metalstrainsensorscannotmonitorlongitudinalhorizondisplacement.()
A:對B:錯
答案:錯Inthesimulationexperiment,plasticfilmscanbeplacedonbothsidesofthemodelframetoreducefriction.()
A:對B:錯
答案:對thecompositekeystratumisdividedintothemainkeystratumandtheinferiorkeystratum,andtheruptureoftheinferiorkeystratumislaterthanthatofthesinglekeystratum.()
A:錯B:對
答案:對Dyesshouldnotbeusedtodistinguishrockformations.()
A:錯B:對
答案:錯Ifthesimulatedstratumthicknessislessthan()m,acomprehensiveselectionshouldbemade:().
A:0.4B:0.2C:0.3D:0.1
答案:0.3Theaveragebulkdensityofthemixtureofsandasaggregateandgypsumandlimeascementis()g/cm3.
A:2.7B:2.4C:2.5D:2.6
答案:2.5Selectsimilarmaterialsbasedonthefollowingprinciples().
A:Afterchangingtheratio,themechanicalindexcanbegreatlychangedforselectionB:ThemainphysicalandmechanicalpropertiesofthemodelmaterialsaresimilartothecorrespondingpartsoftheprototypematerialsC:ConvenientformanufacturewithshortsettingtimeandsimplelayingD:Themechanicalindexisstable,andthemechanicalpropertieswillnotchangebecauseofchangesinatmospherictemperatureandhumidity
答案:Afterchangingtheratio,themechanicalindexcanbegreatlychangedforselection;Themainphysicalandmechanicalpropertiesofthemodelmaterialsaresimilartothecorrespondingpartsoftheprototypematerials;Convenientformanufacturewithshortsettingtimeandsimplelaying;Themechanicalindexisstable,andthemechanicalpropertieswillnotchangebecauseofchangesinatmospherictemperatureandhumidityModelmonitoringinstrumentsmainlyinclude().
A:digitalhighspeedstraingaugeB:modelplaneC:displacementmeterD:metalstrainsensors
答案:digitalhighspeedstraingauge;displacementmeter;metalstrainsensors
第七章單元測試
numericalanalysismethodsmainlyincludeanalysisofcertaintymethodsandanalysisofuncertaintymethods.()
A:錯B:對
答案:對Boundaryelementmethod(BEM)isanaccurateandeffectivemethodforengineeringnumericalanalysis.()
A:對B:錯
答案:對Discreteelementmethodcannotsolvethree-dimensionalproblems.()
A:錯B:對
答案:錯Finitedifferencemethodismoreefficientthanfiniteelementmethod.()
A:錯B:對
答案:對Whichofthefollowingisnotanondeterministicanalysismethod().
A:GreysystemtheoryB:ThediscreteelementmethodC:NeuralnetworkmethodD:Timeseriesanalysis
答案:ThediscreteelementmethodWhichofthefollowingiswrongaboutUDEC().
A:TheUDECcalculationpreparationprocessiscomplexB:BlockscandeformC:UDECcanbeusedinmilitaryactivitiesD:Theblockcanberigid
答案:TheUDECcalculationpreparationprocessiscomplexWhichofthefollowingisnottheapplicationareaoffiniteelementmethod().
A:entertainmentB:biomedicalC:PlateandshellproblemsD:Civilengineering
答案:entertainmentWhichofthefollowingsoftwareisnotbasedondiscreteelementmethod().
A:UDECB:ANSYSC:BLOKS3DD:PFC2D/3D
答案:ANSYSContinuousmediaanalysismethodsmainlyinclude().
A:FinitedifferencemethodB:FiniteelementmethodC:TheboundaryelementmethodD:Noelementmethod
答案:Finitedifferencemethod;Finiteelementmethod;Theboundaryelementmethod;NoelementmethodThemainstepsoffiniteelementmethodtosolvetheprobleminclude().
A:Solvingelementstressandstrain,resultprocessinganddisplayB:Loadshifting,boundaryconditionprocessing,solvinglinearequationC:Structurediscrete,unitanalysis,integralanalysisD:Problemdiscussionandsolution
答案:Solvingelementstressandstrain,resultprocessinganddisplay;Loadshifting,boundaryconditionprocessing,solvinglinearequation;Structurediscrete,unitanalysis,integralanalysis
第八章單元測試
Sincethenecessaryinformationinputfordesignpredictionislimited,geotechnicalnumericalmodelsaremainlyusedtoexplainthemechanicalmechanismsaffectingthesystemcharacteristicsandtoperformsimpleexploratorycalculationsforengineeringdesign.()
A:對B:錯
答案:對Onceblockcuttingiscompleted,materialpropertiesmustbeassignedtoallblocksanddiscontinuities.()
A:錯B:對
答案:對Boundaryforcesandstressescanbeappliedtotheboundariesofrigidanddeformablebodies,butvelocity(displacement)boundariesapplyonlytorigid.()
A:錯B:對
答案:錯Itisveryeasytodeterminewhetherthestressstateformedinthejointmodelrepresentstheinitialstate.()
A:對B:錯
答案:錯Thebasiccommandsforcuttingblocksaremissing().
A:CRACKB:JSETC:ARCD:ROUND
答案:ROUNDThesystemunitofDensityis().
A:NB:kg/m3C:PaD:m/sec2
答案:kg/m3Themore()thefilletlengthis,themore()theinitialunbalanceforceis.().
A:Big,bigB:Small,bigC:Big,smallD:Small,small
答案:Big,big()Changetheblocktoisotropicelasticcharacteristics;()changestheblocktomoore-Coulombmodelandconsiderstheplasticproperties.().
A:Cons=1Cons=0B:Cons=0Cons=1C:Cons=0Cons=3D:Cons=1Cons=3
答案:Cons=1Cons=3Themostefficientplasticmodelis().
A:DoubleyieldmodelB:M-CmodelC:Strainsoftening/hardeningM-CmodelD:D-Pmodel
答案:M-Cmodel;D-PmodelInwhichcaseUDECwilltakealongtimetoconverge:().
A:TherigiditiesorpropertiesoftheblockmaterialandthejointmaterialarequitedifferentB:Thereisabigdifferenceinblockorunitsize.C:ThereislittlecontrastbetweenthestiffnessorpropertiesofblockmaterialandjointedmaterialD:Thereisasmalldifferenceinblockorcellsize
答案:Therigiditiesorpropertiesoftheblockmaterialandthejointmaterialarequitedifferent;Thereisabigdifferenceinblockorunitsize.
第九章單元測試
Accordingtotheconstitutiverelationofblockandjoint,theattributeparametersneededfornumericalcalculationaredetermined,andthemechanicalparametersoftheinterfacebetweenoverburdenrockandcoal-rockstratumaredeterminedaccordingtothephysicalandmechanicaltestdatainlaboratoryandfield.()
A:對B:錯
答案:對Becausethenumericalsimulationiscarriedoutincomputersoftware,thereisnoneedtodeterminethedensitysimilarityratioandstresssimilarityratio.()
A:錯B:對
答案:對Whenthenumberoflayerslaidbythephysicalsimilaritymodelreachesthesurfacedirectly,noadditionalforceisrequired.()
A:錯B:對
答案:對Thegeometricsimilarityratioofnumericalsimulationis1:1.()
A:錯B:對
答案:對Physicalsimilaritysimulationandnumericalsimulationarethesameinthematerialcollectionstep.()
A:對B:錯
答案:對Innumericalsimulation,themodelboundaryeffectshouldbeconsideredandsaintVenant'sprincipleused.()
A:錯B:對
答案:對Horizontalstresscalculationisusuallyexpressedbymultiplyingthelateralpressurecoefficientby()whenhorizontalconstraintsareappliedtotheleftandrightboundariesofthemodel.
A:ThetangentialstressB:GravitystressC:PrincipalstressD:Theverticalstress
答案:T
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