Canadian Geotechnical Journal

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Process of failure in ice
Canadian Geotechnical Journal - Tập 7 Số 4 - Trang 405-413 - 1970
L. W. Gold
Information is presented on the failure behavior of columnar-grained ice during compressive creep and constant strain rate tests. The role of crack formation in establishing the failure condition is briefly described. Breakdown of structure is responsible for a marked change in the creep behavior of ice in the stress range of 10 to 12 kg/cm2. A ductile-to-brittle tran...... hiện toàn bộ
Mineral–water interactions and their influence on the physical behavior of highly compacted Na bentonite
Canadian Geotechnical Journal - Tập 19 Số 3 - Trang 381-387 - 1982
Roland Pusch
Na bentonite is the active component of one of the engineered barriers that are being considered in Sweden to surround the final disposal sites of radioactive wastes from nuclear reactors. It has been chosen because of its low permeability and ion diffusivity and of its self-healing ability through swelling. These properties are due to mineral–water interactions that yield a microstructur...... hiện toàn bộ
Experimental study on swelling characteristics of compacted bentonite
Canadian Geotechnical Journal - Tập 31 Số 4 - Trang 478-490 - 1994
Hideo Komine, Naoya Ogata
Compacted bentonites are attracting greater attention as back-filling (buffer) materials for repositories of high-level nuclear waste. However, since there are few studies about the swelling characteristics of compacted bentonites, it is first necessary to clarify the fundamental swelling characteristics in detail. For this purpose, various laboratory tests on the swelling deformation and...... hiện toàn bộ
Empirical modeling of the compaction curve of cohesive soils
Canadian Geotechnical Journal - Tập 38 Số 1 - Trang 29-45 - 2001
Imad A. Basheer
Compaction curves (or density–moisture relationships) of cohesive soils are essential components for establishing practical and reliable criteria for effective control of field compaction. In this paper, modules built from empirical models for simulating the compaction curves of cohesive soils based on easily measured basic soil properties and compaction energy were developed using both st...... hiện toàn bộ
Using red mud bauxite for the neutralization of acid mine tailings: a column leaching test
Canadian Geotechnical Journal - Tập 43 Số 11 - Trang 1167-1179 - 2006
Michel Paradis, Josée Duchesne, Anouk Lamontagne, Denis Isabel
Acid mine drainage (AMD) is an environmental problem produced when sulphides come in contact with an oxidant (± bacteria) and water, producing acid generation and metals leaching. One solution proposed is to use red mud bauxite (RMB), which is very alkaline, to neutralize oxidized acidic tailings. A column leaching test has been set up to evaluate major aspects of field constraints. First...... hiện toàn bộ
A method for evaluating the representative elementary volume based on joint survey of rock masses
Canadian Geotechnical Journal - Tập 25 Số 3 - Trang 440-447 - 1988
Masanobu Oda
The representative elementary volume of a statistically homogeneous rock mass is defined as the minimum volume beyond which any submass behaves essentially like the whole rock mass. A simple, but still general, method for the determination of the minimum volume is given on the basis of the crack tensor concept; it is concluded that the size must be at least three times larger than a typic...... hiện toàn bộ
Collapsibility, composition, and microstructure of loess in China
Canadian Geotechnical Journal - Tập 53 Số 4 - Trang 673-686 - 2016
Zhen Liu, Fengyin Liu, Fuli Ma, Mei Wang, Xiaohong Bai, Yonglai Zheng, Hang Yin, Guoping Zhang
The collapse potential, mineralogy, microstructure, and particle morphology of a loess from the Loess Plateau, China, were characterized by double oedometer testing, X-ray diffraction, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and image analysis to elucidate the origin of its collapse behavior. Results show that the loess is highly collapsible with a maximum c...... hiện toàn bộ
An energy approach for assessing seismic liquefaction potential
Canadian Geotechnical Journal - Tập 27 Số 3 - Trang 320-329 - 1990
KT Law, Yuan Cao, Guoxian He
An energy method for assessing liquefaction potential of granular soils was developed based on laboratory tests and observational data obtained in past major earthquakes. Cyclic triaxial and cyclic simple shear tests were conducted and the results show that a unique relation exists between the dissipated energy during cyclic load and the excess pore pressure that eventually led to liquefa...... hiện toàn bộ
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
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