Rock Strata Control Simulation Technology智慧树知到答案章节测试2023年太原理工大学

第一章测试Stratacontrolsimulationtechnologyisdividedintolaboratoryequivalentmaterialsimulationandnumericalsimulation.（）

A:错

B:对

答案:BThesimilaritysimulationmethodhastheadvantagesofintuitionistic,simple,economical,rapidandshortexperimentperiod.（）

A:错

B:对

答案:BMiningengineersaremoreconcernedabouttheproblemcanbebasicallydividedintotwocategories:thecontrolofthesurroundingrockandthecontrolproblemoftheroadway’ssurroundingrock.（）

A:对

B:错

答案:ASimulationresearchhascertainlimitations,becausethemechanicalpropertiesofrockmassandthelawoforepressureactivityarecomplicated,anditisdifficulttosimulatethemcompletelyandaccurately.（）

A:错

B:对

答案:BWhatarethecharacteristicsofsimilarsimulationtechnology（）.

A:Objectivity

B:Intuitive

C:Accuracy

D:Takealongtime

答案:BWhichofthefollowingisnotacommonnumericalmethod（）.

A:Finitedifferencemethod

B:Theboundaryelementmethod

C:Thefiniteelementmethod

D:Theinfiniteelementmethod

答案:DInthesimulationstudyofrockformationcontrol,thefollowingoptionisnottheroleofsimulationexperiment（）.

A:Savemanpower,materialresourcesandworkinghours

B:Itprovidesvaluablereferencedataforindustrialtest

C:Accurateandcompletesimulationoforepressureactivity

D:Tosolvesomerockmasspressureproblemswhichcannotbesolvedbytheoreticalanalysismethodatpresent

答案:CWhichofthefollowingisnotanindicationoftheimportanceofphysicalsimulationtechniques（）.

A:Solvespecificcomplexproblems.

B:Physicalsimulationtechnologycanaccuratelyandcompletelysimulatethelawoforepressureactivity

C:Numericalsimulationresultsoftenneedtobecomparedorverifiedwithsimilarsimulationresults.

D:Moderntechnologyrepresentedbyelectroniccomputersmakesphysicalsimulationtechnologymorereliable.

答案:BInrecentyears,withthecontinuousimprovementofengineeringdesignandscientificresearchrequirementsandtherapiddevelopmentofcomputercomputingcapability,numericalmechanicalanalysishasbecomeaconventionalmeanstosolvecomplexengineeringanalysisproblems.Itsmainfunctionsareshowninthefollowingaspects（）.

A:Increasedengineeringandproductreliability

B:Increasedengineeringandproductcosts

C:Tostudytheinternalmechanicsmechanismofengineeringproblems

D:Identifypotentialproblemsduringtheengineeringandproductdesignphases

答案:ACDIncivilengineering,transportation,miningengineering,waterconservancyandhydropowerandotherfields,thematerialsinvolvedhave（）andothercharacteristics.

A:scarcity

B:Mediumformpluralism

C:Theirregularityofgeometricforms

D:Speciesdiversity

答案:BCD第二章测试Accordingtothecharacteristicsofsimilarityphenomenon,similaritycanbedividedintophysicalsimilarityandmathematicalsimilarity.（）

A:对

B:错

答案:AThemodelisanartificiallyshapedentityinthelaboratoryforstudyingthemechanicalpropertiesoftheprototype,whichisanapproximationoftheprototype.（）

A:对

B:错

答案:APhysicalphenomenaandlawsarerelatedtotheunitsofmeasurementchosen.（）

A:对

B:错

答案:BThefirsttheoremofsimilarityandthesecondtheoremofsimilarityarethepropertiesaftersimilarity,whicharesufficientconditionsforsimilarityofphenomena.（）

A:错

B:对

答案:AWhenusing（）toguidemodelresearch,thefirstimportantthingistoderivethesimilaritycriterion.

A:Thefirsttheoremofsimilarity

B:Thesecondtheoremofsimilarity

C:Thethirdtheoremofsimilarity

D:Singlevaluedcondition

答案:AWhichofthefollowingdoesnotbelongtothecategoryofgeometricsimilarity（）.

A:area

B:volume

C:bulkdensity

D:Length

答案:CWhichofthefollowingdoesnotbelongtothebasicdimensionunitofaqualitysystem（）.

A:[L]

B:[F]

C:[T]

D:[M]

答案:BThesimilaritycriterioncanberegardedas（）.

A:variable

B:1

C:constant

D:invariant

答案:DWhichofthefollowingisthefundamentaldimensionunitofaforcesystem（）.

A:[F]

B:[L]

C:[T]

D:[M]

答案:ABCThefollowingbelongingtothecategoryofsingle-valuedconditionsare（）.

A:boundaryconditions

B:mediumconditions

C:initialconditions

D:Geometricconditions

答案:ABCD第三章测试Claycanbeusedasbothaggregateandcementingmaterial.（）

A:对

B:错

答案:AThemechanicalpropertiesofmaterialscanbechangedbychangingtheratioofmaterials.（）

A:错

B:对

答案:BThelargertheparticlesizeofsand,thesmallerthestrengthandelasticmodulusofthematerial.（）

A:对

B:错

答案:BCalciumcarbonateisaplasticmaterial.（）

A:错

B:对

答案:ACoarsemicawithadiameterofD=1.4~5mmshouldbeusedforthesimulationofweaksurfacessuchasinterlayercracksandjoints.（）

A:对

B:错

答案:AThefollowingmaterialsthatarenotaggregateare（）.

A:Lime

B:Powderediron

C:Micapowder

D:tailings

答案:AWhatcanbeusedtoincreasetheplasticityofthematerial（）.

A:Diatomite

B:asphalt

C:clay

D:resin

答案:CFinemicawithdiameterd=()mmshouldbeusedforseparationofmicapowder（）.

A:0.5～0.7

B:0.7～0.9

C:0.3～0.5

D:0.1～0.3

答案:CThefollowingmaterialsarethecementingmaterials（）.

A:liquidglass

B:cement

C:gypsum

D:kaolinclay

答案:ABCDWhatarethedisadvantagesofgypsummaterials（）.

A:Unstableperformance

B:Easytoabsorbmoisture,materialstrengthwillbereduced

C:hardtoobtain

D:Thestrengthofsimilarmaterialsissensitivetogypsumdosage,whichisnoteasytocontrol

答案:BD第四章测试Fortheresearchobjectofminerockpressure,themainloadisself-weightstress,followedbytectonicstress.（）

A:对

B:错

答案:AThemodelframeisusuallycomposedofmainstructure,loadingsystemandmeasuringsystem.（）

A:错

B:对

答案:BPlanemodelcanbedividedintoplanestressmodelandplanestrainmodelaccordingtodifferentconstraintsonbothsides.（）

A:错

B:对

答案:BThemodelislayeredwithmicapowdertoabsorbmoisture.（）

A:对

B:错

答案:BInthestudyofthree-dimensionalproblemsinundergroundspace,need（）.

A:three-dimensionalmodelframe

B:swivelmodelframe

C:Planestressmodelframe

D:Planestrainmodelframe

答案:AFortheresearchobjectofminerockpressure,themainloadis（）.

A:tectonicstress

B:Tensilestress

C:Compressivestress

D:self-weightstress

答案:DThenextstepofagitationinmakingthemodelis（）.

A:Loading

B:Measurement

C:Installationtemplate

D:materialratio

答案:CWhenthemoisturecontentisreducedtomakethemechanicalpropertiesofthematerialstable,themodelexcavationorcuttingcanbecarriedoutonlyafterthehumidityislessthan（）.

A:40%

B:10%

C:20%

D:30%

答案:CAtpresent,themodelframeusedinChinais（）.

A:Planestressmodelframe

B:three-dimensionalmodelframe

C:Planestrainmodelframe

D:swivelmodelframe

答案:ABCDFortheresearchobjectofminerockmasspressure,theloadtobeconsideredis（）.

A:self-weightstress

B:Tensilestress

C:tectonicstress

D:Compressivestress

答案:AC第五章测试Itisnecessarytocomprehensivelyconsiderthestress,strainandfailureofrockmassandrelatedstructuresinordertofullyunderstandtherelevantlawswhenstudyingsimulationmodels.（）

A:错

B:对

答案:BThedisadvantageofthemechanicalmethodisthattheequipmentistoocomplicated.（）

A:错

B:对

答案:AResistancestraingaugeisthemaincomponentofelectricalmeasurementmethod.（）

A:对

B:错

答案:AMoiremethodisanewmethodofexperimentalstressanalysis.Itisanopticalmethodtomeasurethedisplacementfieldandstrainfieldbyusingtwogroupsofgratinginterferencetogeneratedisplacementmap.（）

A:对

B:错

答案:AWhichofthefollowingisnotatypeofmeasurementmethod（）.

A:Electrometricmethod

B:instrumentalmethod

C:Photometricmethod

D:Mechanicalmethod

答案:BWhichofthefollowingoptionsshouldnotbeconsideredintheselectionofresistancestraingauge.（）

A:Staticordynamicload

B:Long-termobservationorshort-termmeasurement

C:Hardnessofmaterial

D:Measuretheworkingconditionoftheobject

答案:CWhichofthefollowingmethodsismechanical?（）

A:levelinstrumentmeasurementmethod

B:Dialindicatormethod

C:lasermeasurementmethod

D:photographicdisplacementmethod

答案:BWhichofthefollowingisnotanadvantageoftheelectricalmethod?（）

A:continuousmeasurementandrecordingformanytimes

B:Simpleequipment

C:easytointerfacewithall-purposeinstrumentsandsignalprocessingequipment

D:highmeasurementaccuracy

答案:BWhatarethefollowingaspectsobservedinthemodel?（）

A:Measurementofmodeldeformation(relativedisplacement)

B:Measurementofinternalstressofthemodel

C:Measurementofabsolutedisplacementofthemodel

D:Maximumloadvalueofsupport

答案:ABCWhataretheadvantagesofthemechanicalmethod?（）

A:strongabilitytoresistexternalinterference

B:needofpowersupply

C:simpleequipment

D:stabilityandsecurity

答案:ACD第六章测试Generallyspeaking,inthestageofcoalseammining,thefirstpressingstepofsinglekeystratumislessthanthatofcompositekeystratum.（）

A:对

B:错

答案:ATheequivalentmaterialmodeltestsystemconsistsoftwoparts:arigformodeltestsandatestanddataacquisitionsystem.（）

A:错

B:对

答案:BMetalstrainsensorscannotmonitorlongitudinalhorizondisplacement.（）

A:对

B:错

答案:BInthesimulationexperiment,plasticfilmscanbeplacedonbothsidesofthemodelframetoreducefriction.（）

A:对

B:错

答案:Athecompositekeystratumisdividedintothemainkeystratumandtheinferiorkeystratum,andtheruptureoftheinferiorkeystratumislaterthanthatofthesinglekeystratum.（）

A:错

B:对

答案:BDyesshouldnotbeusedtodistinguishrockformations.（）

A:错

B:对

答案:AIfthesimulatedstratumthicknessislessthan()m,acomprehensiveselectionshouldbemade:（）.

A:0.2

B:0.1

C:0.4

D:0.3

答案:DTheaveragebulkdensityofthemixtureofsandasaggregateandgypsumandlimeascementis（）g/cm3.

A:2.7

B:2.6

C:2.4

D:2.5

答案:DSelectsimilarmaterialsbasedonthefollowingprinciples（）.

A:Themechanicalindexisstable,andthemechanicalpropertieswillnotchangebecauseofchangesinatmospherictemperatureandhumidity

B:Themainphysicalandmechanicalpropertiesofthemodelmaterialsaresimilartothecorrespondingpartsoftheprototypematerials

C:Convenientformanufacturewithshortsettingtimeandsimplelaying

D:Afterchangingtheratio,themechanicalindexcanbegreatlychangedforselection

答案:ABCDModelmonitoringinstrumentsmainlyinclude（）.

A:displacementmeter

B:modelplane

C:metalstrainsensors

D:digitalhighspeedstraingauge

答案:ACD第七章测试numericalanalysismethodsmainlyincludeanalysisofcertaintymethodsandanalysisofuncertaintymethods.（）

A:错

B:对

答案:BBoundaryelementmethod(BEM)isanaccurateandeffectivemethodforengineeringnumericalanalysis.（）

A:错

B:对

答案:BDiscreteelementmethodcannotsolvethree-dimensionalproblems.（）

A:错

B:对

答案:AFinitedifferencemethodismoreefficientthanfiniteelementmethod.（）

A:错

B:对

答案:BWhichofthefollowingisnotanondeterministicanalysismethod（）.

A:Greysystemtheory

B:Thediscreteelementmethod

C:Neuralnetworkmethod

D:Timeseriesanalysis

答案:BWhichofthefollowingiswrongaboutUDEC（）.

A:Theblockcanberigid

B:TheUDECcalculationpreparationprocessiscomplex

C:UDECcanbeusedinmilitaryactivities

D:Blockscandeform

答案:BWhichofthefollowingisnottheapplicationareaoffiniteelementmethod（）.

A:Plateandshellproblems

B:biomedical

C:entertainment

D:Civilengineering

答案:CWhichofthefollowingsoftwareisnotbasedondiscreteelementmethod（）.

A:UDEC

B:PFC2D/3D

C:BLOKS3D

D:ANSYS

答案:DContinuousmediaanalysismethodsmainlyinclude（）.

A:Noelementmethod

B:Finiteelementmethod

C:Theboundaryelementmethod

D:Finitedifferencemethod

答案:ABCDThemainstepsoffiniteelementmethodtosolvetheprobleminclude（）.

A:Loadshifting,boundaryconditionprocessing,solvinglinearequation

B:Problemdiscussionandsolution

C:Solvingelementstressandstrain,resultprocessinganddisplay

D:Structurediscrete,unitanalysis,integralanalysis

答案:ACD第八章测试Sincethenecessaryinformationinputfordesignpredictionislimited,geotechnicalnumericalmodelsaremainlyusedtoexplainthemechanicalmechanismsaffectingthesystemcharacteristicsandtoperformsimpleexploratorycalculationsforengineeringdesign.（）

A:对

B:错

答案:AOnceblockcuttingiscompleted,materialpropertiesmustbeassignedtoallblocksanddiscontinuities.（）

A:对

B:错

答案:ABoundaryforcesandstressescanbeappliedtotheboundariesofrigidanddeformablebodies,butvelocity(displacement)boundariesapplyonlytorigid.（）

A:对

B:错

答案:BItisveryeasytodeterminewhetherthestressstateformedinthejointmodelrepresentstheinitialstate.（）

A:错

B:对

答案:AThebasiccommandsforcuttingblocksaremissing（）.

A:CRACK

B:JSET

C:ARC

D:ROUND

答案:DThesystemunitofDensityis（）.

A:Pa

B:kg/m3

C:m/sec2

D:N

答案:BThemore()thefilletlengthis,themore()theinitialunbalanceforceis.（）.

A:Big,small

B:Small,big

C:Small,small

D:Big,big

答案:D()Changetheblocktoisotropicelasticcharacteristics;()changestheblocktomoore-Coulombmodelandconsiderstheplasticproperties.（）.

A:Cons=0Cons=3

B:Cons=1Cons=3

C:Cons=1Cons=0

D:Cons=0Cons=1

答案:BThemostefficientplasticmodelis（）.

A:D-Pmodel

B:M-Cmodel

C:Strainsoftening/hardeningM-Cmodel

D:Doubleyieldmodel

答案:ABInwhichcaseUDECwilltakealongtimetoconverge:（）.

A:Thereislittlecontrastbetweenthestiffnessorpropertiesofblockmaterialandjointedmaterial

B:Therigiditiesorpropertiesoftheblockmaterialandthejointmaterialarequitedifferent

C:Thereisasmalldifferenceinblockorcellsize

D:Thereisabigdifferenceinblockorunitsize.

答案:BD第九章测试Accordingtotheconstitutiverelationofblockandjoint,theattributeparametersneededfornumericalcalculationaredetermined,andthemechanicalparametersoftheinterfacebetweenoverburdenrockandcoal-rockstratumaredeterminedaccordingtothephysicalandmechanicaltestdatainlaboratoryandfield.（）

A:对

B:错

答案:ABecausethenumericalsimulationiscarriedoutincomputersoftware,thereisnoneedtodeterminethedensitysimilarityratioandstresssimilarityratio.（）

A:对

B:错

答案:AWhenthenumberoflayerslaidbythephysicalsimilaritymodelreachesthesurfacedirectly,noadditionalforceisrequired.（）

A:错

B:对

答案:BThegeometricsimilarityratioofnumericalsimulationis1:1.（）

A:错

B:对

答案:BPhysicalsimilaritysimulationandnumericalsimulationarethesameinthematerialcollec