抄録
The densification process of the loosely deposited sand bed that has once liquefied under oscillating water pressure on its surface is investigated by using the vertically one-dimensional model. In the analysis, the elasto-plasticity of the sand bed skeleton, the sedimentation in the liquefied sand bed and the liquefaction ratio are taken into account. The experimental results verified that the proposed analytical model expressed the dynamical behavior of sand bed through the process from the occurrence of liquefaction to the densification of the sand bed fairly well.
