SIMULATION OF THE SMEAR ZONE CAUSED BY HORIZONTAL PRESSURE DURING MANDREL ACTION WITH PLAXIS 2D

Abstract

Prefabricated vertical drain is an inexpensive solution that can be easily installed in limited spaces, provides high conductivity, shortens pathways for soils having low permeability, and accelerates the consolidation process. Despite of the success of the product, there are problems with PVD. PVD is brought into the soil by mandrels and anchor plates. And the implantation of this soil greatly disturbed the surrounding soil. There is a compression in the soil texture, increased pore pressure, reduced durability and water content in the smear zone.
Due to the abundance of values and the dependence on many factors, the article desires to establish the shape and extent of the smear zone caused by horizontal pressure during the mandrel action and simulate it by using the finite element through Plaxis software to the soft soil which is very common in the vicinity of Ho Chi Minh City – Vietnam.