Time Dependence of Lateral Earth Pressure
Publication: Journal of Geotechnical Engineering
Volume 110, Issue 4
Abstract
Both theoretical analysis and laboratory test data indicate that for normally consolidated soft clays the coefficient of lateral earth pressure at rest, Ko, gradually increases with time. Physical reasonining suggests that for all soils Ko should asymptotically approach unity. This reasoning implies that for overconsolidated soils with initial values of Ko greater than one, Ko should decrease with time. The time dependence of Ko has significant implications with respect to how the value of Ko measured in laboratory tests relates to in-situ values of Ko.
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References
1.
Kavazanjian, E., Jr., and Mitchell, J. K., “A General Stress‐Strain‐Time Formulation for Soils,” Proceedings of Specialty Session 9, Ninth International Conference on Soil Mechanics and Foundation Engineering, Tokyo, 1977, pp. 113–120.
2.
Lacerda, W. A., “Stress‐Relaxation and Creep Effects on Soil Deformation,” thesis presented to the University of California, at Berkeley, in 1976, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
3.
Mitchell, J. K., Fundamentals of Soil Behavior, John Wiley and Sons, Inc., New York, N.Y., 1976.
4.
Schmertmann, J. H., “A Simple Question about Consolidation,” Technical Note, ASCE, Journal of Geotechnical Engineering, Vol. 109, No. 1, Jan., 1983, pp. 119–122.
Information & Authors
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Published In
Journal of Geotechnical Engineering
Volume 110 • Issue 4 • April 1984
Pages: 530 - 533
Copyright
Copyright © 1984 ASCE.
History
Published online: Apr 1, 1984
Published in print: Apr 1984
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