ABSTRACT
Vertical Rigid Inclusions network associated to a granular layer (IR) is widespread in France as a means of ground reinforcement for soft soil. Less used but also highly efficient as ground improvement system, Mixed Module Columns (CMM) present significant advantages for the construction in seismic areas. A short Stone Column in the upper part with the length usually less than 2 m is associated to a rigid inclusion in down part of CMM (Bustamante et al. 2006). Both CMM and IR systems allow a high increase in bearing capacity and a reduction in settlement. However, CMM have the advantage that the upper part of the system which is more flexible works as a plastic hinge and less seismic energy is transmitted upwards and downwards to and from the superstructure.
