Anisotropy of Undrained Shear Strength Induced by Consolidation and Swelling in Cohesive Soils
Publication: International Journal of Geomechanics
Volume 14, Issue 4
Abstract
Strength anisotropy should be introduced into stability analyses, because the shear direction differs at each sliding point. However, few experiments evaluating the effects of anisotropic consolidation on undrained shear strength have been available for practical construction problems. Therefore, torsional shear tests were conducted on specimens consolidated and swollen in different directions to evaluate the anisotropy of undrained shear strength. Furthermore, to treat two-dimensional problems, the tests were also performed under the plane strain condition, where no radial strain occurs. Results show that the anisotropy of the undrained shear strength is closely related to the differences between consolidation and shearing in terms of directions and stress conditions. Finally, slope stability analyses were conducted to demonstrate how the anisotropy of the undrained shear strength obtained from the experiments can be practically used in field analyses.
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Acknowledgments
The experiments presented herein were conducted over a period of several years with the assistance of students from the Geotechnical Engineering Laboratory, Department of Civil and Environmental Engineering, Nagaoka University of Technology. The authors express their sincere appreciation for the students’ contributions to this study.
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Information & Authors
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Published In
International Journal of Geomechanics
Volume 14 • Issue 4 • August 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Feb 28, 2013
Accepted: Aug 5, 2013
Published online: Aug 7, 2013
Published in print: Aug 1, 2014
Discussion open until: Aug 28, 2014
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