Stiffness of Soil in Excavation-Induced Deformation Analysis in Vietnam
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This study investigates the influence of soil stiffness on excavation-induced wall deformation. The excavation case adopted in this study was performed in alternated subsoil layers in Hanoi with 13.5 m depth and retained by a sheet-pile anchored wall. The soil behaviour was simulated using the Mohr-Coulomb and Hardening Soil models. The soil stiffness was determined Nspt value and undrained shear strength of soil (su) (when saturated clay was treated as non-porous material). Results showed that when compared with the measured wall deflection, both the models could give reasonable predictions as long as the suitable soil stiffness was adopted.
Keywordsdeep excavation deformation analysis soil stiffness
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