TY - JOUR
T1 - Experimental study on the hydro-mechanical behavior of Boom clay
AU - Yu, Hong-Dan
AU - Chen, Wei-Zhong
AU - Jia, Shan-Po
AU - Cao, Jun-Jie
AU - Li, Xiang Ling
A2 - Chen, Guangjing
N1 - Score = 10
PY - 2012/7
Y1 - 2012/7
N2 - In the context of research into deep nuclear waste disposal, Boom clay,a stiff soil from theUnderground Research Laboratory in Mol, Belgium, has been studied in various works. In this paper, containing X-ray diffractiontests, oedometertests, consolidated undrained shearing (CUS) tests and scanning electron microscopic (SEM) tests, a series of experimental studies intended to study the hydro-mechanical behavior and microfabric of Boom clay are presented. X-ray diffractiontests and SEMtests further highlight the high content of clay mineral of Boom clay(about 60% inaverage). Preconsolidation pressure, which is about 5.0MPa, was determined by oedomete rtests. High swelling property under hydro-mechanical coupling effect has been investigated on the clay samples during the CUS test, and also high viscous potential has been represented under shearingrate of 20 mm/min. SEM tests show that the microstructure of Boom clay arranged more directional and denser, and it can be observed clearly through the microstructure variation of pores and fissures.
AB - In the context of research into deep nuclear waste disposal, Boom clay,a stiff soil from theUnderground Research Laboratory in Mol, Belgium, has been studied in various works. In this paper, containing X-ray diffractiontests, oedometertests, consolidated undrained shearing (CUS) tests and scanning electron microscopic (SEM) tests, a series of experimental studies intended to study the hydro-mechanical behavior and microfabric of Boom clay are presented. X-ray diffractiontests and SEMtests further highlight the high content of clay mineral of Boom clay(about 60% inaverage). Preconsolidation pressure, which is about 5.0MPa, was determined by oedomete rtests. High swelling property under hydro-mechanical coupling effect has been investigated on the clay samples during the CUS test, and also high viscous potential has been represented under shearingrate of 20 mm/min. SEM tests show that the microstructure of Boom clay arranged more directional and denser, and it can be observed clearly through the microstructure variation of pores and fissures.
KW - Boom clay
KW - hydro-mechanical behavior
KW - experimental studies
KW - microstructure
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_124664
UR - http://knowledgecentre.sckcen.be/so2/bibref/9558
U2 - 10.1016/j.ijrmms.2012.05.013
DO - 10.1016/j.ijrmms.2012.05.013
M3 - Article
SN - 1365-1609
VL - 53
SP - 159
EP - 165
JO - International Journal of Rock Mechanics & Mining Sciences
JF - International Journal of Rock Mechanics & Mining Sciences
ER -