PLAXIS LIQUEFACTION MODEL UBC3D-PLM - Knowledge Base

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Table 1.2: State variables of the <strong>UBC3D</strong>.Name Symbol ExplanationMobilized Friction Anglesinphi mob Equation 1.11Maximum Mobilized maxsinphi mob -Friction AngleInternal Variable etham r Equals with thesinphi mobNumber of Cross Over xCross Number of half cyclesInternal Variable dsinphi mob evolution of sinphi mobConfining Factor facConf Always 1 in this versionInternal Variavle P hiP Reached It is 1 when the φ peak isreachedInternal Variable r u Equation 1.38Initial mean stress p0 In the beginning of thedynamic phasePore pressure ratio P P R Equation 1.37Initial vertical stress SigV 0 -Maximum Pore pressureP P RMax -ratioMaximum r u r u Max -20
whereas the P P RMAX can reveal if the soil had been in the liquefied stateeven once during the test. The state variable r u gives similar informationas P P R but instead of the effective mean stress the vertical effective stressis used in the equation as shown in Equation 1.38.r u = σ′ vertical,i − σ′ vertical,cσ ′ vertical,i(1.38)21
Page 1: PLAXIS LIQUEFACTION MODELUBC3D-PLMA
Page 5 and 6: 3.6 Reproduced stress path in p ′
Page 7 and 8: AbstractIn this report the formulat
Page 9 and 10: Comparing with the previous version
Page 11 and 12: Figure 1.2: Projection of the yield
Page 13 and 14: ( ) mepK = KBP e A (1.9)P ref( ) ne
Page 15 and 16: The plastic potential function is f
Page 17 and 18: the secondary loading in order to e
Page 19 and 20: loading surface is used again. A ne
Page 21 and 22: The drained bulk modulus of the soi
Page 23 and 24: modelling the inherent and induced
Page 25: Table 1.1: Input Parameters for the
Page 29 and 30: Chapter 2Validation of the UBC3D in
Page 31 and 32: Pore Pressure, u (kPa)UBC3DEx.Pore.
Page 33 and 34: first cycle of post-liquefaction be
Page 35 and 36: Shear Stress , τ (kPa)1086420-2-4-
Page 37 and 38: 1.2Excess Pore Pressures\nitial Ver
Page 39 and 40: Chapter 3Validation of theUBC3D-PLM
Page 41 and 42: Figure 3.2: The finite element mesh
Page 43 and 44: checked but the results are not fur
Page 45 and 46: used again when the stress path exc
Page 47 and 48: EPP (kPa)EPP (kPa)EPP (kPa)Measurem
Page 49 and 50: Figure 3.8: Reproduced stress path
Page 51: S.S. Park and P.M. Byrne. Practical

PLAXIS LIQUEFACTION MODEL UBC3D-PLM - Knowledge Base

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