TY - JOUR
T1 - Study on the hydraulic conductivity of Boom clay
AU - Deng, Yong-Feng
AU - Tang, Anh-Minh
AU - Cui, Yu-Jun
AU - Li, Xiang Ling
A2 - Chen, Guangjing
N1 - Score = 10
PY - 2011/9
Y1 - 2011/9
N2 - The hydraulic conductivity is a parameter in geotechnical engineering practice that is key in seepage and consolidation
analysis. Experimental results show that the hydraulic conductivity is mainly governed by the soil porosity, and correlations
with void ratio are usually proposed. The validity of these correlations has been verified for soft clays and sands;
however, few studies have included stiff clays. In this work, the hydraulic conductivity of Boom clay, a stiff clay taken from
the Essen site in Belgium, was determined from both consolidation and constant-head percolation tests. The data obtained
was then analyzed to evaluate the existing correlations to predict the hydraulic conductivity. In addition, as these correlations
usually require a referred hydraulic conductivity at a known void ratio, the existing methods are often difficult to use in
practice. Thus, a new method was developed allowing the prediction of hydraulic conductivity without the referred value,
which was based on two existing correlations and involved the void ratio and the liquid limit. The proposed correlation was
verified using the experimental results obtained from Boom clay samples that were collected from various locations in Belgium.
AB - The hydraulic conductivity is a parameter in geotechnical engineering practice that is key in seepage and consolidation
analysis. Experimental results show that the hydraulic conductivity is mainly governed by the soil porosity, and correlations
with void ratio are usually proposed. The validity of these correlations has been verified for soft clays and sands;
however, few studies have included stiff clays. In this work, the hydraulic conductivity of Boom clay, a stiff clay taken from
the Essen site in Belgium, was determined from both consolidation and constant-head percolation tests. The data obtained
was then analyzed to evaluate the existing correlations to predict the hydraulic conductivity. In addition, as these correlations
usually require a referred hydraulic conductivity at a known void ratio, the existing methods are often difficult to use in
practice. Thus, a new method was developed allowing the prediction of hydraulic conductivity without the referred value,
which was based on two existing correlations and involved the void ratio and the liquid limit. The proposed correlation was
verified using the experimental results obtained from Boom clay samples that were collected from various locations in Belgium.
KW - Boom clay
KW - consolidation
KW - constant-head percolation
KW - hydraulic conductivity
KW - void ratio
KW - correlation
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_115792
UR - http://knowledgecentre.sckcen.be/so2/bibref/8295
U2 - 10.1139/T11-048
DO - 10.1139/T11-048
M3 - Article
SN - 0008-3674
VL - 48
SP - 1461
EP - 1470
JO - Canadian Geotechnical Journal
JF - Canadian Geotechnical Journal
IS - 10
ER -