Analysis of a Prefabricated Vertical Drain (PVD) Soil Improvement Project

Three-Dimensional Analysis of Soft Soil Consolidation improved by Prefabricated Vertical Drains

A system of prefabricated vertical drains (PVDs) with a surcharge load is an effective method for accelerating soil consolidation by promoting radial flow. This study presents a three-dimensional (3D) finite element model for soft soil improved by a single drain. In the finite element analysis, the actual rectangular PVD cross-section is considered, and the equivalent drain diameter is then bac...

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...

Nonlinear analysis for a single vertical drain including the effects of preloading considering the compressibility and permeability of the soil

In this paper, the free strain radial consolidation theory incorporating the changes of compressibility and permeability of the soil with the change in effective stress via time dependent surcharge preloading is presented. In contrast to the conventional analysis, the current study highlights the nonlinear characteristics of the soil during the consolidation process. A comparison of the nonline...

Transient drainage from a vertical soil column

Transient drainage from a vertical soil column