Numerical simulation of geosynthetic clay liner desiccation under high thermal gradients and low overburden stress

Ali Ghavam-Nasiri; Abbas El-Zein; David Airey; R. Kerry Rowe; Abdelmalek Bouazza

doi:10.1061/(ASCE)GM.1943-5622.0001425

Numerical simulation of geosynthetic clay liner desiccation under high thermal gradients and low overburden stress

Ali Ghavam-Nasiri, Abbas El-Zein, David Airey, R. Kerry Rowe, Abdelmalek Bouazza

Civil Engineering

Research output: Contribution to journal › Article › Research › peer-review

14 Citations (Scopus)

Abstract

A multiphase, thermohydro-mechanical model of unsaturated soils is presented to assess the risk of desiccation of a geosynthetic clay liner (GCL) in a composite lining system (i.e., a high-density polyethylene geomembrane over a geosynthetic clay liner) under conditions encountered in brine or solar ponds, where temperatures can reach up to 95°C and the geosynthetic clay liner is subject to low effective stress. The model considers void ratio and temperature-dependent soil-water characteristic curves (SWCCs) for needle-punched GCLs. The model was validated against results from experimental column studies.

Original language	English
Article number	04019069
Number of pages	20
Journal	International Journal of Geomechanics
Volume	19
Issue number	7
DOIs	https://doi.org/10.1061/(ASCE)GM.1943-5622.0001425
Publication status	Published - 1 Jul 2019

Access to Document

10.1061/(ASCE)GM.1943-5622.0001425

Cite this

@article{027784df50434c769467950be33e86e8,

title = "Numerical simulation of geosynthetic clay liner desiccation under high thermal gradients and low overburden stress",

abstract = "A multiphase, thermohydro-mechanical model of unsaturated soils is presented to assess the risk of desiccation of a geosynthetic clay liner (GCL) in a composite lining system (i.e., a high-density polyethylene geomembrane over a geosynthetic clay liner) under conditions encountered in brine or solar ponds, where temperatures can reach up to 95°C and the geosynthetic clay liner is subject to low effective stress. The model considers void ratio and temperature-dependent soil-water characteristic curves (SWCCs) for needle-punched GCLs. The model was validated against results from experimental column studies.",

author = "Ali Ghavam-Nasiri and Abbas El-Zein and David Airey and Rowe, {R. Kerry} and Abdelmalek Bouazza",

year = "2019",

month = jul,

day = "1",

doi = "10.1061/(ASCE)GM.1943-5622.0001425",

language = "English",

volume = "19",

journal = "International Journal of Geomechanics",

issn = "1532-3641",

publisher = "American Society of Civil Engineers",

number = "7",

}

TY - JOUR

T1 - Numerical simulation of geosynthetic clay liner desiccation under high thermal gradients and low overburden stress

AU - Ghavam-Nasiri, Ali

AU - El-Zein, Abbas

AU - Airey, David

AU - Rowe, R. Kerry

AU - Bouazza, Abdelmalek

PY - 2019/7/1

Y1 - 2019/7/1

N2 - A multiphase, thermohydro-mechanical model of unsaturated soils is presented to assess the risk of desiccation of a geosynthetic clay liner (GCL) in a composite lining system (i.e., a high-density polyethylene geomembrane over a geosynthetic clay liner) under conditions encountered in brine or solar ponds, where temperatures can reach up to 95°C and the geosynthetic clay liner is subject to low effective stress. The model considers void ratio and temperature-dependent soil-water characteristic curves (SWCCs) for needle-punched GCLs. The model was validated against results from experimental column studies.

AB - A multiphase, thermohydro-mechanical model of unsaturated soils is presented to assess the risk of desiccation of a geosynthetic clay liner (GCL) in a composite lining system (i.e., a high-density polyethylene geomembrane over a geosynthetic clay liner) under conditions encountered in brine or solar ponds, where temperatures can reach up to 95°C and the geosynthetic clay liner is subject to low effective stress. The model considers void ratio and temperature-dependent soil-water characteristic curves (SWCCs) for needle-punched GCLs. The model was validated against results from experimental column studies.

UR - http://www.scopus.com/inward/record.url?scp=85065304202&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)GM.1943-5622.0001425

DO - 10.1061/(ASCE)GM.1943-5622.0001425

M3 - Article

AN - SCOPUS:85065304202

VL - 19

JO - International Journal of Geomechanics

JF - International Journal of Geomechanics

SN - 1532-3641

IS - 7

M1 - 04019069

ER -

Numerical simulation of geosynthetic clay liner desiccation under high thermal gradients and low overburden stress

Abstract

Access to Document

Other files and links

Cite this