Postliquefaction Undrained Shear Behavior of Sand-Silt Mixtures at Constant Void Ratio
Publication: International Journal of Geomechanics
Volume 13, Issue 4
Abstract
A detailed study on the postliquefaction undrained shear behavior of sand-silt mixtures at constant void ratios is presented in this article. The influence of different parameters such as density, amplitude of cyclic shear stress, and drainage conditions on the postliquefaction undrained response of sand-silt mixtures has been investigated, in addition to the effect of fines content. The results showed that the limiting silt content plays a vital role in the strength of the soil under both cyclic and monotonic shear loading. Both the liquefaction resistance and postliquefaction shear strength of the soils are found to decrease with an increase in the fines content until the limiting silt content is reached. However, further increase in the silt content beyond the limiting silt content increases the liquefaction resistance as well as the postliquefaction shear strength of the soils. It is also observed that these variations on the liquefaction and postliquefaction resistance of soils are closely related to the variations in relative density.
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Acknowledgments
The authors acknowledge the financial support provided by the Ministry of Earth Sciences, formerly the Ministry of Science and Technology (Seismology Division), Government of India, for carrying out the research work reported in this technical paper. The authors also acknowledge the two anonymous reviewers for their careful and constructive views, which significantly improved the manuscript.
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Information & Authors
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Published In
International Journal of Geomechanics
Volume 13 • Issue 4 • August 2013
Pages: 421 - 429
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jun 28, 2011
Accepted: May 16, 2012
Published online: Jul 15, 2013
Published in print: Aug 1, 2013
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