Hardening Soil model with small strain stiffness - Zace Services Ltd.

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Estimation of material properties: dilatancy angle 0.06 0.05 0.04 ε 0.03 V 0.02 0.01 0 -0.01 d=0.75 -0.02 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1 ε 1 ( ) 0.75 ψ = arcsin ≈ 16 o 2 + 0.75 1 Andrzej Truty ZACE Services Hardening Soil model with small strain stiffness
Estimation of material properties: E ref o and m Analytical formula: E o = E ref o ( σ ∗ 3 + c cotφ σ ref + c cotφ ) m Measured: shear wave velocity v s at ε 1 = 10 −6 and at given confining stress σ 3 Compute : shear modulus G o = ρv 2 s Compute : Young modulus E o = 2 (1 + ν) G o σ 3 [kPa] E o [kPa] 100 250000 300 460000 600 675000 Andrzej Truty ZACE Services Hardening Soil model with small strain stiffness
Page 1 and 2: Hardening Soil model with small str
Page 3 and 4: Introduction HS model was initially
Page 5 and 6: Notion of tangent and secant stiffn
Page 7 and 8: Notion of treshold shear strain γ
Page 9 and 10: HS model: general concept Double ha
Page 11 and 12: Stiffness stress dependency Remarks
Page 13 and 14: How does it work N-1 N N+1 plot fr
Page 15 and 16: Setting initial state variables: γ
Page 17 and 18: Setting initial state variables: γ
Page 19 and 20: Material properties Parameter Unit
Page 21 and 22: Example: triaxial test on dense Hos
Page 23 and 24: Example: triaxial test on dense Hos
Page 25 and 26: Estimation of material properties:
Page 27: Estimation of material properties:
Page 37 and 38: Excavation in Berlin Sand: FE discr
Page 39 and 40: Excavation in Berlin Sand: Wall def
Page 41 and 42: Excavation in Berlin Sand: Soil def

Hardening Soil model with small strain stiffness - Zace Services Ltd.

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