Effects of smear and well resistance in vertical drains installed in soft clay

摘要

This study describes the modelling of vertical drains incorporating smear and well resistance in a 2-D plane strain finite element model employing the modified Cam-clay theory. In the analytical model, the vertical drains system was converted into equivalent parallel drain walls by converting the coefficient of permeability of the soil. The transformed permeability coefficient was then incorporated in he finite element code, CRISP. The numerical results indicate that the inclusion of the effects of both smear and well resistance of the vrical drains improves the accuracy of predictions of the settlements, excess pore water pressures and lateral displacements.