Numerical modelling of soft soil installed by PVDs

X. J. Yu; Z. Fang; Jianhua Yin; S. Y. Wang; Y. Yan

Numerical modelling of soft soil installed by PVDs

X. J. Yu, Z. Fang, Jianhua Yin, S. Y. Wang, Y. Yan

Research output: Journal article publication › Journal article › Academic research › peer-review

Abstract

One small-scale physical model test on the PVD (Prefabricated Vertical Drain) treated Hong Kong marine clay was simulated using finite element method (FEM) in this study. A User MATerial (UMAT) subroutine describing an Elastic Visco-Plastic (EVP) constitutive model was developed and incorporated into one commercial finite element code ABAQUS. A degressive permeability of the PVD strip was included to consider variations of its permeability during the consolidation process. The UMAT and the adopted reducing technique were demonstrated to be effective by good agreement between the observed consolidation settlement and excess pore water pressures and the simulated ones.

Original language	English
Pages (from-to)	1249-1254
Number of pages	6
Journal	Key Engineering Materials
Volume	340-341 II
Publication status	Published - 16 Apr 2007

Keywords

Consolidation
Elastro-viscoplastic
Finite element
Marine clay
UMAT

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

@article{c00f238dd7ef4cfba9d468b4d200e2cf,

title = "Numerical modelling of soft soil installed by PVDs",

abstract = "One small-scale physical model test on the PVD (Prefabricated Vertical Drain) treated Hong Kong marine clay was simulated using finite element method (FEM) in this study. A User MATerial (UMAT) subroutine describing an Elastic Visco-Plastic (EVP) constitutive model was developed and incorporated into one commercial finite element code ABAQUS. A degressive permeability of the PVD strip was included to consider variations of its permeability during the consolidation process. The UMAT and the adopted reducing technique were demonstrated to be effective by good agreement between the observed consolidation settlement and excess pore water pressures and the simulated ones.",

keywords = "Consolidation, Elastro-viscoplastic, Finite element, Marine clay, UMAT",

author = "Yu, {X. J.} and Z. Fang and Jianhua Yin and Wang, {S. Y.} and Y. Yan",

year = "2007",

month = apr,

day = "16",

language = "English",

volume = "340-341 II",

pages = "1249--1254",

journal = "Key Engineering Materials",

issn = "1013-9826",

publisher = "Trans Tech Publications",

}

TY - JOUR

T1 - Numerical modelling of soft soil installed by PVDs

AU - Yu, X. J.

AU - Fang, Z.

AU - Yin, Jianhua

AU - Wang, S. Y.

AU - Yan, Y.

PY - 2007/4/16

Y1 - 2007/4/16

N2 - One small-scale physical model test on the PVD (Prefabricated Vertical Drain) treated Hong Kong marine clay was simulated using finite element method (FEM) in this study. A User MATerial (UMAT) subroutine describing an Elastic Visco-Plastic (EVP) constitutive model was developed and incorporated into one commercial finite element code ABAQUS. A degressive permeability of the PVD strip was included to consider variations of its permeability during the consolidation process. The UMAT and the adopted reducing technique were demonstrated to be effective by good agreement between the observed consolidation settlement and excess pore water pressures and the simulated ones.

AB - One small-scale physical model test on the PVD (Prefabricated Vertical Drain) treated Hong Kong marine clay was simulated using finite element method (FEM) in this study. A User MATerial (UMAT) subroutine describing an Elastic Visco-Plastic (EVP) constitutive model was developed and incorporated into one commercial finite element code ABAQUS. A degressive permeability of the PVD strip was included to consider variations of its permeability during the consolidation process. The UMAT and the adopted reducing technique were demonstrated to be effective by good agreement between the observed consolidation settlement and excess pore water pressures and the simulated ones.

KW - Consolidation

KW - Elastro-viscoplastic

KW - Finite element

KW - Marine clay

KW - UMAT

UR - http://www.scopus.com/inward/record.url?scp=34147168735&partnerID=8YFLogxK

M3 - Journal article

SN - 1013-9826

VL - 340-341 II

SP - 1249

EP - 1254

JO - Key Engineering Materials

JF - Key Engineering Materials

ER -

Numerical modelling of soft soil installed by PVDs

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

Other files and links

Fingerprint

Cite this