Rock Strata Control Simulation Technology知到智慧树章节测试课后答案2024年秋太原理工大学

RockStrataControlSimulationTechnology知到智慧树章节测试课后答案2024年秋太原理工大学第一章单元测试

Stratacontrolsimulationtechnologyisdividedintolaboratoryequivalentmaterialsimulationandnumericalsimulation.（）

A:对B:错

答案:对Thesimilaritysimulationmethodhastheadvantagesofintuitionistic,simple,economical,rapidandshortexperimentperiod.（）

A:错B:对

答案:对Miningengineersaremoreconcernedabouttheproblemcanbebasicallydividedintotwocategories:thecontrolofthesurroundingrockandthecontrolproblemoftheroadway’ssurroundingrock.（）

A:对B:错

答案:对Simulationresearchhascertainlimitations,becausethemechanicalpropertiesofrockmassandthelawoforepressureactivityarecomplicated,anditisdifficulttosimulatethemcompletelyandaccurately.（）

A:对B:错

答案:对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

第二章单元测试

Accordingtothecharacteristicsofsimilarityphenomenon,similaritycanbedividedintophysicalsimilarityandmathematicalsimilarity.（）

A:对B:错

答案:对Themodelisanartificiallyshapedentityinthelaboratoryforstudyingthemechanicalpropertiesoftheprototype,whichisanapproximationoftheprototype.（）

A:错B:对

答案:对Physicalphenomenaandlawsarerelatedtotheunitsofmeasurementchosen.（）

A:对B:错

答案:错Thefirsttheoremofsimilarityandthesecondtheoremofsimilarityarethepropertiesaftersimilarity,whicharesufficientconditionsforsimilarityofphenomena.（）

A:对B:错

答案:错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

第三章单元测试

Claycanbeusedasbothaggregateandcementingmaterial.（）

A:错B:对

答案:对Themechanicalpropertiesofmaterialscanbechangedbychangingtheratioofmaterials.（）

A:对B:错

答案:对Thelargertheparticlesizeofsand,thesmallerthestrengthandelasticmodulusofthematerial.（）

A:错B:对

答案:错Calciumcarbonateisaplasticmaterial.（）

A:对B:错

答案:错CoarsemicawithadiameterofD=1.4~5mmshouldbeusedforthesimulationofweaksurfacessuchasinterlayercracksandjoints.（）

A:错B:对

答案:对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

第四章单元测试

Fortheresearchobjectofminerockpressure,themainloadisself-weightstress,followedbytectonicstress.（）

A:错B:对

答案:对Themodelframeisusuallycomposedofmainstructure,loadingsystemandmeasuringsystem.（）

A:对B:错

答案:对Planemodelcanbedividedintoplanestressmodelandplanestrainmodelaccordingtodifferentconstraintsonbothsides.（）

A:错B:对

答案:对Themodelislayeredwithmicapowdertoabsorbmoisture.（）

A:错B:对

答案:错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

第五章单元测试

Itisnecessarytocomprehensivelyconsiderthestress,strainandfailureofrockmassandrelatedstructuresinordertofullyunderstandtherelevantlawswhenstudyingsimulationmodels.（）

A:错B:对

答案:对Thedisadvantageofthemechanicalmethodisthattheequipmentistoocomplicated.（）

A:对B:错

答案:错Resistancestraingaugeisthemaincomponentofelectricalmeasurementmethod.（）

A:对B:错

答案:对Moiremethodisanewmethodofexperimentalstressanalysis.Itisanopticalmethodtomeasurethedisplacementfieldandstrainfieldbyusingtwogroupsofgratinginterferencetogeneratedisplacementmap.（）

A:对B:错

答案:对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

第六章单元测试

Generallyspeaking,inthestageofcoalseammining,thefirstpressingstepofsinglekeystratumislessthanthatofcompositekeystratum.（）

A:对B:错

答案:对Theequivalentmaterialmodeltestsystemconsistsoftwoparts:arigformodeltestsandatestanddataacquisitionsystem.（）

A:对B:错

答案:对Metalstrainsensorscannotmonitorlongitudinalhorizondisplacement.（）

A:对B:错

答案:错Inthesimulationexperiment,plasticfilmscanbeplacedonbothsidesofthemodelframetoreducefriction.（）

A:对B:错

答案:对thecompositekeystratumisdividedintothemainkeystratumandtheinferiorkeystratum,andtheruptureoftheinferiorkeystratumislaterthanthatofthesinglekeystratum.（）

A:错B:对

答案:对Dyesshouldnotbeusedtodistinguishrockformations.（）

A:错B:对

答案:错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

第七章单元测试

numericalanalysismethodsmainlyincludeanalysisofcertaintymethodsandanalysisofuncertaintymethods.（）

A:错B:对

答案:对Boundaryelementmethod(BEM)isanaccurateandeffectivemethodforengineeringnumericalanalysis.（）

A:对B:错

答案:对Discreteelementmethodcannotsolvethree-dimensionalproblems.（）

A:错B:对

答案:错Finitedifferencemethodismoreefficientthanfiniteelementmethod.（）

A:错B:对

答案:对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

第八章单元测试

Sincethenecessaryinformationinputfordesignpredictionislimited,geotechnicalnumericalmodelsaremainlyusedtoexplainthemechanicalmechanismsaffectingthesystemcharacteristicsandtoperformsimpleexploratorycalculationsforengineeringdesign.（）

A:对B:错

答案:对Onceblockcuttingiscompleted,materialpropertiesmustbeassignedtoallblocksanddiscontinuities.（）

A:错B:对

答案:对Boundaryforcesandstressescanbeappliedtotheboundariesofrigidanddeformablebodies,butvelocity(displacement)boundariesapplyonlytorigid.（）

A:错B:对

答案:错Itisveryeasytodeterminewhetherthestressstateformedinthejointmodelrepresentstheinitialstate.（）

A:对B:错

答案:错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.

第九章单元测试

Accordingtotheconstitutiverelationofblockandjoint,theattributeparametersneededfornumericalcalculationaredetermined,andthemechanicalparametersoftheinterfacebetweenoverburdenrockandcoal-rockstratumaredeterminedaccordingtothephysicalandmechanicaltestdatainlaboratoryandfield.（）

A:对B:错

答案:对Becausethenumericalsimulationiscarriedoutincomputersoftware,thereisnoneedtodeterminethedensitysimilarityratioandstresssimilarityratio.（）

A:错B:对

答案:对Whenthenumberoflayerslaidbythephysicalsimilaritymodelreachesthesurfacedirectly,noadditionalforceisrequired.（）

A:错B:对

答案:对Thegeometricsimilarityratioofnumericalsimulationis1:1.（）

A:错B:对

答案:对Physicalsimilaritysimulationandnumericalsimulationarethesameinthematerialcollectionstep.（）

A:对B:错

答案:对Innumericalsimulation,themodelboundaryeffectshouldbeconsideredandsaintVenant'sprincipleused.（）

A:错B:对

答案:对Horizontalstresscalculationisusuallyexpressedbymultiplyingthelateralpressurecoefficientby（）whenhorizontalconstraintsareappliedtotheleftandrightboundariesofthemodel.

A:ThetangentialstressB:GravitystressC:PrincipalstressD:Theverticalstress

答案:T