In this study, numerical modeling of a multi-drain system is employed to determine the optimum penetration depth of prefabricated vertical drains (PVDs) and the vacuum pressure that provides the maximum consolidation settlement and less lateral displacements. The plane strain analysis using an equivalent permeability with transformed unit cell geometry was considered for varying drain length an...

A system of vertical drains with combined vacuum and surcharge preloading is an effective solution for promoting radial flow, accelerating consolidation. However, when a mixture of soil and water is deposited at a low initial density, a significant amount of deformation or surface settlement occurs. Therefore, it is necessary to introduce large-strain theory, which has been widely used to manag...

This article provides a comparative knowledge of predicted and measured settlements road embankments with prefabricated vertical drains (PVDs). The emphasis this study was to investigate back-analyse the ratio horizontal permeability in an undisturbed area smeared zone, which affects behaviour drains. Two models PVDs soft ground were developed by utilising plane strain 2D numerical approach bas...