Numerical Modelling of Prefabricated Vertical Drain for Soft Clay Using ABAQUS

Soft soils improved by prefabricated vertical drains: performance and prediction

Improving Engineering Properties of Soft Soil Using Preloading and Prefabricated Vertical Drains

Preloading and Prefabricated Vertical Drains (PVD) is a ground improvement technique used to increase the consolidation process of clayey soils by means of shortening the drainage path. This paper discusses a case study of a road construction where a part of road alignment goes through a low laying water logged area. Primary consolidation of soft clay will continue for longer period of time aft...

Numerical study of soil dynamic compaction using ABAQUS model

One of the most important methods of soil compaction is dynamic compaction, which is one of the oldest and economical methods of soil improvement up to great depths. This method is applied due to its many benefits, including its economic procedure to correct many kinds of soil. One of the most important issues that affect soil improvement methods is being economic. The three main method...

Effects of partially penetrating prefabricated vertical drains and loading patterns on vacuum consolidation

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...

Analysis of Radial Vacuum-Assisted Consolidation Using 3D Finite Element Method

In this study, a 3D numerical modelling of a single vertical drains consolidation incorporating vacuum preloading considering both vertical and horizontal drainage is presented. The effects of nonlinear soil compressibility, varying permeability and vacuum pressure distribution along the drain are examined through the dissipation of average excess pore pressure and associated settlement. A sele...