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RockStrataControlSimulationTechnology智慧樹知到期末考試答案2024年RockStrataControlSimulationTechnologyThesimilaritycriterioncanbedeterminedbyusingπtheoremthroughdimensionalanalysis.()

A:錯(cuò)B:對(duì)答案:錯(cuò)Inordertomeettheneedofstudyinginclinedstratasimulationexperiment,theplanerotatingmodelframeshouldbeused.()

A:對(duì)B:錯(cuò)答案:對(duì)UDECiswellsuitedforstudyingpotentialfailuremodesthataredirectlyrelatedtodiscontinuouscharacteristics.()

A:對(duì)B:錯(cuò)答案:對(duì)Ifthesimulationislocatedinthedeepundergroundspace,themodelheightisnotenoughtosimulatethefullburieddepth,soitneedstobeloadedatthetopofthemodel.()

A:正確B:錯(cuò)誤答案:正確Accordingtothethirdtheoremofsimilitude,wecanpointouttherulesthatmustbeobeyedindoingmodelexperiments.()

A:對(duì)B:錯(cuò)答案:對(duì)Fortheactualgeologicalstructure,thejointsarevirtualandtheirexistenceshouldnotaffectthecalculationresultsofthemodel.()

A:錯(cuò)誤B:正確答案:正確Ifthesimulatedprototypeiscomposedofmultiplelayersofrock,thestrengthindexofthesimulatedrockshouldbecalculatedlayerbylayer.()

A:對(duì)B:錯(cuò)答案:對(duì)Theminingprocessofthemodelinthetestcanbeunderstoodastheprocessofmovingthepoweredsupportattheworkingfaceandtheprocessofcoalcaving.()

A:對(duì)B:錯(cuò)答案:對(duì)Fordeformedblocks,themaximumfilletlengthshouldnotexceed1%oftheaverageedgelengthoftheblock.()

A:對(duì)B:錯(cuò)答案:錯(cuò)Asimplemodelcanrevealsomeproblemssothattheycanbeamendedbeforein-depthanalysis.()

A:正確B:錯(cuò)誤答案:正確Micapowdercanincreasethethermoconductivityofthematerials.()

A:對(duì)B:錯(cuò)答案:錯(cuò)Whenthephysicalsimilaritymodeldoesnotneedtobelaidtothesurface,anexternalloadisappliedtothemodeltoreplacethedeadweightoftheupperstrata.()

A:對(duì)B:錯(cuò)答案:對(duì)Numericalanalysismethodsmainlyincludeanalysisofcertaintymethodsandanalysisofuncertaintymethods.()

A:錯(cuò)B:對(duì)答案:對(duì)Numericalsimulationiscarriedoutincomputersoftwarewithouttheneedforrealsimulationmaterials,sothereisnoneedtodeterminedensitysimilarityratio,stresssimilarityratio.()

A:錯(cuò)B:對(duì)答案:對(duì)TheengineeringstructureshapeisformedbycuttingtheUDECblock,whichneedstobecarriedoutbeforetheexcavationoftheproject.()commandsaretypicallyusedtogenerateshapes.

A:fourB:OneC:twoD:three答案:threeWhichofthefollowingiswrongaboutUDEC?()

A:BlocksinUDECcanbedeformableB:UDECcanbeusedinmilitaryactivitiesC:BlocksinUDECcanberigidD:TheUDECcalculationpreparationprocessiscomplex答案:TheUDECcalculationpreparationprocessiscomplexWhichofthefollowingisnotafeatureofdiscreteelementmethod?()

A:TheexplicitintegraliterativealgorithmallowslargedisplacementandrotationB:ThediscreteelementmethodcanusevariousnonlinearmodelstodescribethecontactbetweenblocksorparticlesC:TheinteractionoftheboundarybetweenblockscanreflectthecharacteristicsofdiscontinuityandjointD:Notmuchinthefieldofapplication答案:ThediscreteelementmethodItsvvaluedefinesthe()ofthetriangularelement,namely,thesmallerthevvalueis,thesmallertheelementintheblockis.

A:TheminimumareaB:TheminimumlengthC:ThemostwidespreadD:Thelargestlength答案:ThelargestlengthTheelementcompositionofPFCmodel(2D)contactpropertydoesnotinclude.()

A:BondtypeB:LinearspringsC:DisplacementincrementD:Coulombslider答案:DisplacementincrementWhichofthefollowingisaggregate()

A:cementB:SandC:BrokensawdustD:Lime答案:Sand###BrokensawdustArtificialboundaryclassificationincludes:()

A:coordinateB:interceptedboundarylineC:symmetryaxisD:hyperbolic答案:symmetryaxis###interceptedboundarylinePhysicalsimilaritysimulationdeterminestheprinciplesthatsimilarmaterialsneedtofollow()

A:Whenthesimilarmaterialsareselected,themainphysicalandmechanicalpropertiesofthecorrespondingpartsofthemodelandprototypeshouldbesimilarB:Whentheratioofmixedmaterialsischanged,itsmechanicalpropertiescanbegreatlychangedC:ThemechanicalpropertiesofthematerialarestableandnoteasilyaffectedbyenvironmentalchangesD:Materialsshouldbeeasytoobtain,easytomanufacture,easytolay答案:Whenthesimilarmaterialsareselected,themainphysicalandmechanicalpropertiesofthecorrespondingpartsofthemodelandprototypeshouldbesimilar###Themechanicalpropertiesofthematerialarestableandnoteasilyaffectedbyenvironmentalchanges###Materialsshouldbeeasytoobtain,easytomanufacture,easytolay###Whentheratioofmixedmaterialsischanged,itsmechanicalpropertiescanbegreatlychangedWhichofthefollowingarethebasicunitsofqualitysystemdimension()

A:[L]B:[M]C:[T]D:[F]答案:[L]###[M]###[T]Parametersrequiredforjointpropertiesare:()

A:CohesiveforceB:TensilestrengthC:FrictionAngleD:dilatancyangle答案:FrictionAngle###Tensilestrength###Cohesiveforce###dilatancyangleThefollowingsimilaritytheoryis().

A:GeometricsimilaritytheoremB:thesecondsimilaritytheoremC:PhysicalsimilaritytheoremD:TheFirstTheoremofSimilarity答案:thesecondsimilaritytheorem###TheFirstTheoremofSimilarityIfthesimulationislocatedinthedeepundergroundspace,themodelheightisnotenoughtosimulatethefullburieddepth,soitneedstobeloadedatthetopofthemodel.()

A:對(duì)B:錯(cuò)答案:AI參考:正確答案是B:錯(cuò)。\n\n如果模擬位于深地下空間,模型的高度不足以模擬完全埋藏深度,因此需要在模型頂部加載。所以選項(xiàng)B是錯(cuò)誤的。'Ifthesimulatedprototypeiscomposedofmultiplelayersofrock,thestrengthindexofthesimulatedrockshouldbecalculatedlayerbylayer.()

A:對(duì)B:錯(cuò)答案:AI參考:答案:B:錯(cuò)。\n\n根據(jù)題目描述,如果模擬原型由多層的巖石組成,那么強(qiáng)度指標(biāo)應(yīng)該逐層計(jì)算。但實(shí)際上,對(duì)于模擬巖體的強(qiáng)度指標(biāo)計(jì)算,通常需要考慮整個(gè)巖體的完整性、應(yīng)力狀態(tài)等因素,不能只按照層進(jìn)行計(jì)算。因此,該說法是不正確的。所以,最終答案為B。'Themeasurementaccuracyofthedialindicatormethodisnothigh,moretimeandmanpowerareneededwhenthemulti-pointmeasurementisarranged.()

A:錯(cuò)B:對(duì)答案:AI參考:正確答案是B:對(duì)。\n刻度指示器的測(cè)量精度不高,多點(diǎn)測(cè)量時(shí)需要更多時(shí)間和人力。因此該說法是正確的。'Withtheenhancementoftheconsciousnessofenvironmentalprotectionandtheconceptofsustainableeconomicdevelopment,thegreenminingtechnologyofcoalmineisproposed,whichdoesnotinclude().

A:AdvancedsupporttechnologyB:WaterconservationminingtechnologyformedbywaterresourcesprotectionC:Co-miningtechnologyofcoalandgasformedbygasdrainageD:Coalseamroadwaysupportandcoalseamminingtechnology答案:AI參考:正確答案是:C:Co-miningtechnologyofcoalandgasformedbygasdrainage.(由排水形成的煤與瓦斯共采技術(shù))。\n煤層綠色開采技術(shù)應(yīng)包括三部分:減少資源破壞和環(huán)境污染的開采方法;實(shí)現(xiàn)煤與瓦斯共采的開采方法;節(jié)約水資源、減少水災(zāi)的開采方法。因此,本題答案為C選項(xiàng)。\n\n煤與瓦斯共采是指在進(jìn)行采煤的同時(shí),通過科學(xué)管理和利用瓦斯技術(shù)措施,開采、抽放煤層瓦斯或進(jìn)行礦井瓦斯發(fā)電,最大限度地開發(fā)利用瓦斯資源,同時(shí)降低煤礦開采的危害和風(fēng)險(xiǎn),保證煤炭生產(chǎn)和煤礦安全的一種煤礦安全生產(chǎn)新技術(shù)。本題選項(xiàng)中的C選項(xiàng)是瓦斯抽放技術(shù)和抽放瓦斯發(fā)電技術(shù),不屬于綠色開采技術(shù)。因此,正確答案是C選項(xiàng)。\n\n此外,選項(xiàng)A的“先進(jìn)支護(hù)技術(shù)”、選項(xiàng)B的“水保開采技術(shù)”、選項(xiàng)D的“煤層巷道支護(hù)和煤層開采技術(shù)”都是屬于綠色開采技術(shù)的一部分,但并非題干所求的全部?jī)?nèi)容。因此,這三個(gè)選項(xiàng)不是正確答案。\n\n綜上所述,本題的正確答案是C選項(xiàng):Co-miningtechnologyofcoalandgasformedbygasdrainage.(由排水形成的煤與瓦斯共采技術(shù))。'Theclaymaterialdiameterof()issuitable.

A:0.35mmB:0.39mmC:0.37mmD:0.32mm答案:AI參考:正確答案是C,0.37mm。\n根據(jù)題目描述,需要選擇適合的粘土材料直徑,選項(xiàng)中只有C符合要求,因此答案為C。'Thenecessaryandsufficientconditionforphenomenonsimilarityis().

A:TheThirdSimilarityTheoremB:thesecondsimilaritytheoremC:DimensionalanalysisD:TheFirstTheoremofSimilarity答案:AI參考:正確答案是D:TheFirstTheoremofSimilarity。\n現(xiàn)象相似的必要充分條件是第一相似定理。因此,正確答案是D。'Cons=()meansthatthemodelblockmaterialisremovedorexcavated.

A:1B:2C:3D:0答案:AI參考:正確選項(xiàng):D.0\n\n根據(jù)題目描述,Cons=0意味著模型塊材料被移除或挖掘。因此,選項(xiàng)D為正確答案。其他選項(xiàng)A、B、C不符合題目要求和描述。'Thereisnoconstraintbeforeandafterthemodel,andlateraldeformationisallowed.()

A:swivelmodelframeB:three-dimensionalmodelframePlaneC:stressmodelframeD:Planestrainmodelframe答案:AI參考:答案:D:Planestrainmodelframe\n\n解釋:在模型前后沒有約束,允許側(cè)向變形,所以是平面應(yīng)變模型(Planestrainmodelframe)。選項(xiàng)A的“swivelmodelframe”指的是可旋轉(zhuǎn)模型框架,選項(xiàng)B的“three-dimensionalmodelframe”指的是三維模型框架,選項(xiàng)C的“stressmodelframe”指的是應(yīng)力模型框架,它們都不符合題意。'(),designedanddevelopedbyinstituteofMiningTechnology,TaiyuanUniversityofTechnology,canbeusedforsolid-flowcouplingsimulationexperiment.

A:Three-dimensionalmodelframePlaneB:StressmodelframeC:SwivelmodelframeD:Planestrainmodelframe答案:AI參考:正確答案是【D:Planestrainmodelframe】。這個(gè)選項(xiàng)表明“平面應(yīng)變模型框架”被太原科技學(xué)院礦業(yè)技術(shù)研究所設(shè)計(jì)開發(fā),可用來進(jìn)行固體流耦合模擬實(shí)驗(yàn)。'Whichofthefollowingdoesnotbelongtophysicalsimilarity().

A:BulkdensityB:lengthC:timeD:speed答案:AI參考:正確答案是C:time。\n物理相似是指不同物體的體積、重量、長(zhǎng)度等特征與相同物體的物理屬性之間保持某種特定的比例關(guān)系。而選項(xiàng)C“時(shí)間”與其它選項(xiàng)不屬于物理相似范疇,因?yàn)樗且环N主觀的概念,不能作為衡量物體物理屬性的標(biāo)準(zhǔn)。因此,答案為C。'Similarsimulationisintheindooruseofsomeartificialmaterials,accordingtothesimilarityprincipletomakeasimilarmodel,themodelisbasedonthe()toshape.

A:ExistingmaterialB:ThesimulatedprototypeC:ConditionsofthetestsiteD:Theroleofmodels答案:AI參考:正確答案是A:Existingmaterial。\r\n根據(jù)相似原理制作相似模型,模型是依據(jù)現(xiàn)有的材料來塑造的。因此,答案為A。B、C、D選項(xiàng)都與模型制作沒有直接關(guān)系。'Inordertomeettheneedsofstudyinginclinedstratasimulationexperiment,()shouldbeused.

A:PlanestrainmodelframeB:three-dimensionalmodelframePlaneC:stressmodelframeD:swivelmodelframe答案:AI參考:正確答案是【Planestrainmodelframe】選項(xiàng)。\n\n選項(xiàng)A的意思是平面應(yīng)變模型框架,可以用于模擬傾向?qū)恿骷羟袑臃謱拥牧鲃?dòng)機(jī)理。模擬實(shí)驗(yàn)是利用該框架滿足對(duì)特定傾斜層的需要,即對(duì)斜層流進(jìn)行剪切流動(dòng)實(shí)驗(yàn)時(shí)需要平面應(yīng)變模型框架來滿足其要求。選項(xiàng)B和C不準(zhǔn)確,而選項(xiàng)D則是傾轉(zhuǎn)模型框架,不能滿足對(duì)傾斜層流模擬實(shí)驗(yàn)的需求。因此,正確答案是平面應(yīng)變模型框架。'Otherkeywords()relativetotheJSETcommandcanalsobeusedtorestrictblocksfrombeingcut.

A:crackB:blockC:deleteD:range答案:AI參考:正確答案是D:range。\n這個(gè)選項(xiàng)“range”可以與JSET命令相關(guān)的其他關(guān)鍵詞一起使用,以限制被剪切的塊的范圍。其他選項(xiàng)A、B、C與題意不符。因此,答案為D。'UDEC/3DECApplicationField()

A:ThegeotechnicalengineeringB:Agriculture,forestryandengineeringC:EarthquakeengineeringD:Militaryengineering答案:AI參考:正確選項(xiàng)為B:Agriculture,forestryandengineering。根據(jù)問題中的信息,UDEC/3DEC應(yīng)用領(lǐng)域包括農(nóng)業(yè)、林業(yè)和工程,選項(xiàng)A中的“地質(zhì)工程”并不是一個(gè)常見的應(yīng)用領(lǐng)域,選項(xiàng)C中的“地震工程”可能涉及,但也不是唯一的重點(diǎn),選項(xiàng)D中的“軍事工程”與問題中的信息無關(guān)。因此,選項(xiàng)B“農(nóng)業(yè)、林業(yè)和工程”是最符合問題中提到的UDEC/3DEC應(yīng)用領(lǐng)域的選項(xiàng)。Whichofthefollowingareboundaryconditions().

A:stressB:Poisson’sratioC:displacementD:geometricdimension答案:AI參考:正確選項(xiàng)是【C:displacement】。邊界條件是指物體在特定約束條件下所受到的力和力矩,這些條件決定了物體的運(yùn)動(dòng)和變形。選項(xiàng)A中的應(yīng)力(stress)和選項(xiàng)D中的幾何尺寸(geometricdimension)都是物體受到的外力或外力矩,屬于物體受力方面的邊界條件。選項(xiàng)B中的泊松比(Poisson’sratio)是材料在受到應(yīng)力時(shí)的變形性質(zhì),不屬于邊界條件。選項(xiàng)C中的位移(displacement)是指物體在受到外力作用后發(fā)生的相對(duì)位置變化,是物體運(yùn)動(dòng)方面的邊界條件之一。因此,選項(xiàng)C是正確的邊界條件答案。ThemostcommonlyusedmodelsfordeformedblocksinUDECareasfollows:()

A:cons=3;jtensionmodelB:cons=3;Mohr-coulombmodelC:cons=1;elasticmodelchangeD:changecons=0;nullmodelchangechange答案:AI參考:正確答案是【B:cons=3;Mohr-coulombmodel】。在UDEC中,用于處理變形塊的最常用模型如下:cons=3;Mohr-coulombmodel(B選項(xiàng))。該模型考慮了巖石的強(qiáng)度條件和破壞準(zhǔn)則,適用于處理復(fù)雜的巖土工程問題。其他選項(xiàng)中,A選項(xiàng)是con=3時(shí)的拉伸模型,C選項(xiàng)是彈性模型變化,D選項(xiàng)是改變cons=0時(shí)的空模型變化,它們都不是用于處理變形塊的最常用模型。Numericalsimulationtechnologycommonlyusednumericalcalculationmethodsaremainly:()

A:FinitedifferencemethodB:TherigidbodyelementmethodC:TheboundaryelementmethodD:Thefiniteelementmethod答案:AI參考:正確答案是【ABD】:有限差分法、剛體元素法和有限元法。這三個(gè)選項(xiàng)都是數(shù)值模擬技術(shù)常用的數(shù)值計(jì)算方法,其中有限差分法是用于求解偏微分方程的數(shù)值方法,剛體元素法主要用于剛體動(dòng)力學(xué)的研究,有限元法是解決復(fù)雜形狀和結(jié)構(gòu)的力學(xué)問題最常用的方法之一。因此,正確答案為ABD。C選項(xiàng)的邊界元素法通常用于電磁場(chǎng)、熱傳導(dǎo)等領(lǐng)域的研究,但并非數(shù)值模擬技術(shù)常用的數(shù)值計(jì)算方法之一。Functionso

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