Variation of the hydraulic conductivity of Boom Clay under various thermal-hydro-mechanical conditions

Research output: Contribution to journalArticlepeer-review

Standard

Variation of the hydraulic conductivity of Boom Clay under various thermal-hydro-mechanical conditions. / Li, Xiang Ling; Ma, Yong-Shang; Chen, Wei-Zhong; Yu, Hong-Dan; Gong, Zhe; Li, Xiang Ling (Peer reviewer).

In: Engineering Geology, Vol. 212, 01.09.2016, p. 35-43.

Research output: Contribution to journalArticlepeer-review

Author

Li, Xiang Ling ; Ma, Yong-Shang ; Chen, Wei-Zhong ; Yu, Hong-Dan ; Gong, Zhe ; Li, Xiang Ling. / Variation of the hydraulic conductivity of Boom Clay under various thermal-hydro-mechanical conditions. In: Engineering Geology. 2016 ; Vol. 212. pp. 35-43.

Bibtex - Download

@article{ee7bacf9bc3641aa9bf85bca4702bd63,
title = "Variation of the hydraulic conductivity of Boom Clay under various thermal-hydro-mechanical conditions",
abstract = "In this paper, an experimental study is presented that intended to investigate (1) the anisotropy properties of hydraulic conductivity of BoomClay, (2) the effect of heating-cooling cycle on the hydraulic conductivity and intrinsic permeability of Boom Clay, and (3) the effect of loading-unloading cycle on the hydraulic conductivity and intrinsic permeability of Boom Clay. Constant-head tests were carried out in a temperature-controlled triaxial cell. First, the anisotropic characteristic of hydraulic conductivity of Boom Clay with respect to its bedding was confirmed. The horizontal hydraulic conductivity (parallel to bedding) is larger than the vertical hydraulic conductivity (perpendicular to bedding). Second, there was a positive and reversible relationship between the hydraulic conductivity and temperature and a negative and irreversible relationship between the hydraulic conductivity and hydrostatic pressure. Specifically, for both horizontal and vertical hydraulic conductivity, the value at 80 °C is approximately 2.4 times larger than that at room temperature (23 °C). However, it appears that the hydraulic conductivity is not sensitive to heating rate. Data analysis reveals that under variable temperature conditions, the changes in viscosity and density of water with temperature are the main factors affecting the change in hydraulic conductivity of Boom Clay with temperature, although other factors may have an effect to some extent.",
keywords = "Boom Clay, Hydraulic conductivity, intrinsic permeability, THM effects, heating-cooling cycle, loading-unloading cycle",
author = "Li, {Xiang Ling} and Yong-Shang Ma and Wei-Zhong Chen and Hong-Dan Yu and Zhe Gong and Li, {Xiang Ling}",
note = "Score=10",
year = "2016",
month = sep,
day = "1",
doi = "10.1016/j.enggeo.2016.07.013",
language = "English",
volume = "212",
pages = "35--43",
journal = "Engineering Geology",
issn = "0013-7952",
publisher = "Elsevier",

}

RIS - Download

TY - JOUR

T1 - Variation of the hydraulic conductivity of Boom Clay under various thermal-hydro-mechanical conditions

AU - Li, Xiang Ling

AU - Ma, Yong-Shang

AU - Chen, Wei-Zhong

AU - Yu, Hong-Dan

AU - Gong, Zhe

A2 - Li, Xiang Ling

N1 - Score=10

PY - 2016/9/1

Y1 - 2016/9/1

N2 - In this paper, an experimental study is presented that intended to investigate (1) the anisotropy properties of hydraulic conductivity of BoomClay, (2) the effect of heating-cooling cycle on the hydraulic conductivity and intrinsic permeability of Boom Clay, and (3) the effect of loading-unloading cycle on the hydraulic conductivity and intrinsic permeability of Boom Clay. Constant-head tests were carried out in a temperature-controlled triaxial cell. First, the anisotropic characteristic of hydraulic conductivity of Boom Clay with respect to its bedding was confirmed. The horizontal hydraulic conductivity (parallel to bedding) is larger than the vertical hydraulic conductivity (perpendicular to bedding). Second, there was a positive and reversible relationship between the hydraulic conductivity and temperature and a negative and irreversible relationship between the hydraulic conductivity and hydrostatic pressure. Specifically, for both horizontal and vertical hydraulic conductivity, the value at 80 °C is approximately 2.4 times larger than that at room temperature (23 °C). However, it appears that the hydraulic conductivity is not sensitive to heating rate. Data analysis reveals that under variable temperature conditions, the changes in viscosity and density of water with temperature are the main factors affecting the change in hydraulic conductivity of Boom Clay with temperature, although other factors may have an effect to some extent.

AB - In this paper, an experimental study is presented that intended to investigate (1) the anisotropy properties of hydraulic conductivity of BoomClay, (2) the effect of heating-cooling cycle on the hydraulic conductivity and intrinsic permeability of Boom Clay, and (3) the effect of loading-unloading cycle on the hydraulic conductivity and intrinsic permeability of Boom Clay. Constant-head tests were carried out in a temperature-controlled triaxial cell. First, the anisotropic characteristic of hydraulic conductivity of Boom Clay with respect to its bedding was confirmed. The horizontal hydraulic conductivity (parallel to bedding) is larger than the vertical hydraulic conductivity (perpendicular to bedding). Second, there was a positive and reversible relationship between the hydraulic conductivity and temperature and a negative and irreversible relationship between the hydraulic conductivity and hydrostatic pressure. Specifically, for both horizontal and vertical hydraulic conductivity, the value at 80 °C is approximately 2.4 times larger than that at room temperature (23 °C). However, it appears that the hydraulic conductivity is not sensitive to heating rate. Data analysis reveals that under variable temperature conditions, the changes in viscosity and density of water with temperature are the main factors affecting the change in hydraulic conductivity of Boom Clay with temperature, although other factors may have an effect to some extent.

KW - Boom Clay

KW - Hydraulic conductivity

KW - intrinsic permeability

KW - THM effects

KW - heating-cooling cycle

KW - loading-unloading cycle

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/21832502

U2 - 10.1016/j.enggeo.2016.07.013

DO - 10.1016/j.enggeo.2016.07.013

M3 - Article

VL - 212

SP - 35

EP - 43

JO - Engineering Geology

JF - Engineering Geology

SN - 0013-7952

ER -

ID: 2118152