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

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Estimation of E ref o from CPT testing To estimate small strain modulus G o at a certain depth one may use empirical formula by Mayne and Rix: G o = 49.4 q0.695 t e 1.13 [MPa] q t is a corrected tip resistance expressed in MPa e is the void ratio Andrzej Truty ZACE Services Hardening Soil model with small strain stiffness
Estimation of material properties: E ref 50 Lets us find E 50 for each confining stress f 50 ( σ 3 = q 2500 2000 1500 100) 1000 1 E 50( σ 3 = 300kPa) 1 E 50( σ 3 = 600kPa) E 50( σ 3 = 100kPa) 1 q f 50 ( σ 3 = q f 50 ( σ 3 = 100) 500 100) 0 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1 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 31: 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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