岩土类材料本构参数实例

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1、72.0000.26ChangesX(；40°5.0Young'smodulus(E)(kPa)Poissontratio(v)Lengthscale(mm)Cosseraishearmodulus(Gc)FrictionangleCohesion(kPa)一Finiteelementanalysisoflocalizationandmicro-macrostructurerelationingranularmaterials.PartII:Tmplementationandsimulationsanalysisconduct

2、edusingthesimplerMohr-CoulombmodelofPLAXIS:•Angleoffriction°=37°•Young'sModulusE=675MPa•Poisson'sratiov=0.35•AngleofDilation屮=0°Numericalanalysesoffault-foundationinteractionrablcIDmcker-PragermodelparametersforrocksandsaturatedsoftsoilsYoung'smodulus£(MPa>Poisson's

3、ratiovCohesionFrictionangle0(°)Dilationangle“(°)Unitweighty(kN/m')ManhattanSchist33.6(X)0.1286.65012.524.0Averagequalityrock9.(XX)0.253.533424.0Poor_ualityrock1.40()030.5524024.0Saturatedsoftsoil—Layerla5.60.49538002().0Saturatedsoftsoil—LayerIP100.49590002().0Satur

4、atedsoftsoilLayer1IT160.495150002().0SaturatedsoftsoilLayerIVa230.495170002().0SaturatedsoftsoilLayerVa310.495296002().0SaturatedsoftsoilLayers1-Varecountedfromtoptobottom,thethicknessesofwhichare.i=4.15m.dgaH=9m,dkaycrin=8.85血dtaywiv=10.5m・andd^>xrv=145mruble2Capmo

5、delparametersfordensesandysoilsYoung'smodulusE(MPa)Phisson'sratiovCohesionc(MPa)Frictionangle©(°)WDR閔Unitweighty(kN/m5(l/MPa)(MRa)Layerlh146.720.30.0430.(X)120.872.450.05617.0LayerII1'324.880.30.0430.00120.872.450.12417.()Layerlllb759.800.30.043O.(X)I20.872.450.2191

6、7.0LayerIVh792.780.30.0430.00120.872.450.29017.0LayerVh1J00.0030.0430.00120.872.450.41817.0Theinitiallocationofhardeningcapp0wasassumedtobetheaveragemeanstressofthesoillayerThedivisionofsoillayeristhesameasthatinTable1—DynamicAnalysisofSubwayStructuresUndorBlastLoad

7、inglahieIMechanicalandhydraulicpropertiesofthematerialsk■Xr0（。）dNy(kN/m3)kK=(m/s)OCRStonecolumn().(M)2750.0111.894238().31.920■1Softsoil0.020.223.2630().253.4017IO~91Embankmentfill().005().031.835().31.81733201—Anintegratedcohesive/overlappingcrackmodelfortheanalysi

8、sofflexuralcrackingandcrushinginRCbeamsCojisfimtiverelationsInordertofonnulatetheelasto-plasticrockbehaviour,thefollowingweredefined:anexp