Abstract
The vacuum consolidation method with prefabricated vertical drains (PVD) is widely used in Japan for soft ground improvent. Negative pressure is applied to soft ground through PVD in this method. However, the transmission process of the pressure is not clearly explained by the experiments or the numerical analyses. In this paper, the comparison was attempted between the experimental results using the soil tank in which soft clay was applied with negative pressure and numerical analysis results. A soil/water coupled elasto-plastic FEM code, DACSAR-MC was used and the output indicates good correlations with the experimental results up to the degree of consolidation of 70%. It appeares the enfluence of the experimental constraints become innegligible in the late stage of consolidation process.
