Foundation Numerical Analysis on Soft Soil Reinforced with Stone Columns

Abstract

A parametric study of an foundation on soft soils reinforced with stone columns is performed using Phase2D. The real foundation is modeled and its bearing capacity is decided by the columns and their surrounding soft soil. The following parameters are analysed: the replacement area ratio, the deformability, mean stress, absolute horizontal (vertical) displacement, volumetric strain, maximum shear strain of the foundation. Based on the results of this study, a new design method is proposed: for decreasing the settlement and satisfying bearing capacity, increasing the replacement area ratio is good idea.

Dynamic Compaction and Compaction Grouting for Dewatering in Pit

“…For deep excavation, it is the bad strata that affect the slope stability, the seepage prevention and anchoring effects. The mechanical properties used in design are listed in Table 1 [4].…”