Fractal Representation for Effective Stress of Unsaturated Soils
Publication: International Journal of Geomechanics
Volume 15, Issue 6
Abstract
Bishop’s effective stress equation for unsaturated soils was abandoned for some time because of the difficulties in estimating the value of parameter . Only recently has it been recognized that the use of Bishop’s stress equation can lead to simpler and more realistic constitutive models for unsaturated soils. Based on the analysis of the equilibrium of solid particles, it was possible to establish an analytical expression for Bishop’s parameter from soil pore structure. It is shown that quantitative predictions of shear strength and volume change in unsaturated soils can be made using the effective stress concept.
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Acknowledgments
The National Nature Science Foundation of China (Grant No.41272318) is acknowledged for its financial support. Ahment H. Aydilek, Associate Professor of the Department of Civil and Environmental Engineering, University of Maryland is also acknowledged for his kind help.
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Published In
International Journal of Geomechanics
Volume 15 • Issue 6 • December 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Sep 3, 2013
Accepted: Sep 2, 2014
Published online: Oct 16, 2014
Published in print: Dec 1, 2015
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