ABSTRACT
Deep soil mixing is an effective mitigation strategy that reduces the devastating impacts of liquefaction hazards. These strong columns decrease the induced damage to the substructures while there are still lots of uncertainties about the design assumptions of DSM configurations in the liquefiable areas. Considering the practical concerns, a series of fully nonlinear numerical simulations are conducted and the effect of interaction of DSM grids and liquefied subsurface layer on the ground shaking motions is evaluated. Effect of DSM pattern and mechanical properties on the response of system were examined and results compared with those analytical methods proposed in the literature. Reduction of excess pore water pressure near the columns was obvious.
