Canadian Geotechnical Journal

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Effect of variable confining pressure on cyclic behaviour of granular soil under triaxial tests
Canadian Geotechnical Journal - Tập 54 Số 6 - Trang 768-777 - 2017
Qi Sun, Yuanqiang Cai, Jian Chu, Quanyang Dong, Jun Wang
Previous studies were performed to use combined cyclic deviatoric stress and confining pressure to simulate cyclic vertical and horizontal normal stresses under traffic loading. The effect of variable confining pressure (VCP) on the permanent deformation of soils was investigated. However, some studies concluded VCP could promote the development of permanent deformation compared to the te...... hiện toàn bộ
Confining stress and static shear effects in cyclic liquefaction
Canadian Geotechnical Journal - Tập 38 Số 3 - Trang 580-591 - 2001
Y. P. Vaid, James David Stedman, S. Sivathayalan
Liquefaction resistance of a sand under cyclic loading is assessed and the effects of the levels of confining pressure and static shear on resistance to liquefaction are investigated. Site-specific values of the resistance under specified levels of confining and static shear stresses are measured in the laboratory. The measured values are compared with those which would be predicted by the...... hiện toàn bộ
Swelling and softening behaviour of La Biche shale
Canadian Geotechnical Journal - Tập 35 Số 2 - Trang 206-221 - 1998
R. V. C. Wong
Free swell, semiconfined swell, and one-dimensional oedometer swell tests were performed on La Biche shale specimens in solutions of different salinities. The swelling behaviour of La Biche shale was found to be highly anisotropic and dependent on electrolyte concentration, stress, and swelling history. Drained triaxial compression tests were conducted on La Biche shale specimens subjecte...... hiện toàn bộ
Characterization of geotechnical variability
Canadian Geotechnical Journal - Tập 36 Số 4 - Trang 612-624 - 1999
Kok‐Kwang Phoon, Fred H. Kulhawy
Geotechnical variability is a complex attribute that results from many disparate sources of uncertainties. The three primary sources of geotechnical uncertainties are inherent variability, measurement error, and transformation uncertainty. Inherent soil variability is modeled as a random field, which can be described concisely by the coefficient of variation (COV) and scale of fluctuation....... hiện toàn bộ
Effect of embedment on consolidated undrained capacity of skirted circular foundations in soft clay under planar loading
Canadian Geotechnical Journal - Tập 54 Số 2 - Trang 158-172 - 2017
Cristina Vulpe, Susan Gourvenec, Alexander F. Cornelius
The effect of foundation embedment ratio and soil–skirt interface roughness on the consolidated undrained capacity of skirted circular foundations under planar loading in normally consolidated clay has been investigated through coupled three-dimensional finite element analyses. Results are presented as failure envelopes, and changes in shape and size of the normalized vertical–horizontal–...... hiện toàn bộ
Model for the prediction of shear strength with respect to soil suction
Canadian Geotechnical Journal - Tập 33 Số 3 - Trang 379-392 - 1996
Sai K. Vanapalli, D. G. Fredlund, D E Pufahl, A W Clifton
Experimental studies on unsaturated soils are generally costly, time-consuming, and difficult to conduct. Shear strength data from the research literature suggests that there is a nonlinear increase in strength as the soil desaturates as a result of an increase in matric suction. Since the shear strength of an unsaturated soil is strongly related to the amount of water in the voids of the...... hiện toàn bộ
Erratum : Equations for the soil-water characteristic curve
Canadian Geotechnical Journal - Tập 31 Số 6 - Trang 1026-1026 - 1994
D. G. Fredlund, Anqing Xing
Interpretation of increased deformation rate in aquifer IV due to groundwater pumping in Shanghai
Canadian Geotechnical Journal - Tập 50 Số 11 - Trang 1129-1142 - 2013
Shui‐Long Shen, Lei Ma, Ye‐Shuang Xu, Zhen‐Yu Yin
Shanghai is a typical example of a region in China suffering from severe land subsidence. Previous investigations have shown that land subsidence is strongly related to groundwater pumping in both the temporal and spatial domains. A series of field investigations shows that the deformation rate of aquifer IV (AqIV) has increased, contributing significantly to the total subsidence in Shang...... hiện toàn bộ
Bayesian identification of soil stratigraphy based on soil behaviour type index
Canadian Geotechnical Journal - Tập 56 Số 4 - Trang 570-586 - 2019
Zi-Jun Cao, Shuo Zheng, Dianqing Li, Kok‐Kwang Phoon
The cone penetration test (CPT) has been widely used to determine the soil stratigraphy (including the number N and thicknesses HNof soil layers) during geotechnical site investigation because it is rapid, repeatable, and economical. For this purpose, several deterministic and probabilistic approaches have been developed in the literature, but these approaches generall...... hiện toàn bộ
Interpretation of cone penetration tests — a unified approach
Canadian Geotechnical Journal - Tập 46 Số 11 - Trang 1337-1355 - 2009
P. K. Robertson
The electric cone penetration test (CPT) has been in use for over 40 years and is growing in popularity in North America. This paper provides some recent updates on the interpretation of some key geotechnical parameters in an effort to develop a more unified approach. Extensive use is made of the normalized soil behaviour type (SBTn) chart based on normalized cone resistance (Qt<...... hiện toàn bộ
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