Consolidation of Clays for Variable Permeability and Compressibility
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 129, Issue 11
Abstract
The theory of consolidation has its origin in the effective stress concept developed by Terzaghi, which was derived based on several assumptions to arrive at a simplified theory. Considering the limitations involved in Terzaghi’s theory, various attempts are being made by researchers to idealize the problem to represent various field situations. This paper presents a more generalized theory for vertical consolidation of a compressible medium of finite thickness, subjected to suddenly applied loading, assuming small strain and no creep. The theory assumes small deformations, and thus the settlement is governed by vertical strains generated by an increment of loading, neglecting the effect of self-weight of the soil. The analytical solution presented here takes into account and linear responses under instantaneous loading. With as the slope of the line and M the slope of the line, a parameter is identified which is found to govern the rate of consolidation. In this paper, an analytical closed form solution is obtained for vertical consolidation considering the variation in the compressibility and permeability.
Get full access to this article
View all available purchase options and get full access to this article.
References
Basak, P.(1979). “Analytical solution for consolidation of a semi-infinite medium with variable permeability.” Indian Geotech. J.,9(3), 201–211.
Basak, P., and Madhav, M. R.(1978). “Analytical solutions of sand drain problems.” J. Geotech. Eng. Div., Am. Soc. Civ. Eng., 104(1), 129–135.
Berry, P. L., and Wilkinson, W. B.(1969). “The radial consolidation of clay soils.” Geotechnique, 19(2), 253–284.
Davis, F. H., Raymond,G. P., (1965). “A non-linear theory of consolidation.” Geotechnique, 15(2), 161–173.
Gibson, R. E., England, G. L.and Hussey, M. J. L.(1967). “The theory of one-dimensional consolidation of saturated clays, 1. Finite non-linear consolidation of thin Homogeneous layers.” Geotechnique 17(3), 261–273.
Lekha, K. R., Krishnaswamy, N. R., and Basak, P.(1998). “Consolidation of clay by sand drain under time-dependent loading.” J. Geotech. Geoenviron. Eng., 124(1), 91–94.
Mesri, G., and Rokhsar, A.(1974). “Theory of consolidation for clays.” J. Geotech. Eng. Div., Am. Soc. Civ. Eng., 100(8), 889–904.
Prakash, K. (1997). “Settling, compressibility and permeability behavior of fine grained soils.” PhD thesis, Indian Institute of Science, Bangalore, India.
Tavenas, P., Jean, P., Leblond, P., and Leroueil, S.(1983). “The permeability of natural soft clays. Part II: Permeability characteristics.” Can. Geotech. J., 20, 645–659.
Terzaghi, K. (1943). Theoretical Soil Mechanics, John Wiley & Sons, New York.
Information & Authors
Information
Published In
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Mar 2, 1999
Accepted: Nov 7, 2002
Published online: Oct 15, 2003
Published in print: Nov 2003
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.