FINITE ELEMENT MODELLING OF STONE COLUMN INSTALLATION: REVIEW OF MODELLING PRACTICES AND CASE STUDY WITH PLAXIS 2D
Olivier Hurley, Mathieu Nuth, Mourad Karray 
Dans les comptes rendus d’articles de la conférence: GeoQuébec 2015: 68th Canadian Geotechnical Conference & 7th Canadian Permafrost ConferenceSession: Problematic Soils and Ground Improvement I / Sols problématiques et amélioration du comportement I
ABSTRACT: This article discusses the different numerical modelling practices for the stone column installation and establishes a comparative review of the numerical techniques and constitutive laws used in the literature. Furthermore, taking advantage of the best practices in numerical modelling of stone column installation, a numerical model was created with PLAXIS 2D in axisymmetric geometry to reproduce the lateral expansion of stone in sand. The host material is modelled with a hardening soil constitutive relation to represent the repetitive loading and unloading of the sand during expansion. The results are presented in terms of lateral to vertical stress ratio and variation in void ratio and are then calibrated with two experimental stone column tests carried out at an intermediate scale in our laboratory.
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Hurley, Olivier, Nuth, Mathieu, Karray, Mourad (2015) FINITE ELEMENT MODELLING OF STONE COLUMN INSTALLATION: REVIEW OF MODELLING PRACTICES AND CASE STUDY WITH PLAXIS 2D in GEO2015. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Hurley_GEO2015_609,
author = {{Hurley, Olivier}, {Nuth, Mathieu}, {Karray, Mourad}}
title = {FINITE ELEMENT MODELLING OF STONE COLUMN INSTALLATION: REVIEW OF MODELLING PRACTICES AND CASE STUDY WITH PLAXIS 2D}
booktitle = {Proceedings of the 68th Canadian Geotechnical Conference & 7th Canadian Permafrost Conference}
year = {2015}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {FINITE ELEMENT MODELLING OF STONE COLUMN INSTALLATION: REVIEW OF MODELLING PRACTICES AND CASE STUDY WITH PLAXIS 2D}
booktitle = {Proceedings of the 68th Canadian Geotechnical Conference & 7th Canadian Permafrost Conference}
year = {2015}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }