Consolidation Curves for Clays
Publication: Journal of Geotechnical Engineering
Volume 109, Issue 10
Abstract
A general nonlinear differential equation for the one‐dimensional consolidation of saturated plastic soils, taking into account the variations of compressibility and permeability of the soil, is integrated by numerical methods and the corresponding consolidation curves are presented. If where γ and κ are the nonlinear coefficient of compressibility and the coefficient of permeachange, respectively, the consolidation curves depend only on the ratio of the final to the initial thicknesses and on the ratio of the parameters Taking as reference the consolidation curves for which the coefficient of consolidation is constant, for which case then it is found that the displacement of the consolidation curves increases with values of λ/γ compared to zero and with values of compared to unity. The Terzaghi's linear solution is found to be a very good solution for the special case
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References
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Crank, J., and Nicolson, P., “A Practical Method for Numerical Evaluation of Solutions of Partial Differential Equations of the Heat‐Conduction Type,” Proceedings, Camb, Philosophical Society 43, Philadelphia, Pa., 1947, pp. 50–67.
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Isaacson, E., and Keller, H. B., Analysis of Numerical Methods, John Wiley & Sons, Inc., New York, N.Y., 1966.
3.
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Juárez‐Badillo, E., “General Permeability Change Equation for Soils,” International Conference on Constitutive Laws for Engineering Materials, University of Arizona, Tucson, Ariz., Jan., 1983, pp. 205–209.
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Juárez‐Badillo, E., “General Consolidation Theory for Clays,” Report No. 8, Soil Mechanics Series, Graduate School of Engineering, National University of Mexico, 1983.
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Juncosa, M. L., and Young, D., “On the Crank‐Nicolson Procedure for Solving Parabolic Partial Differential Equations,” Proceedings, Camb., Philosophical Society 53, Philadelphia, Pa., 1957, pp. 448–461.
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Copyright © 1983 ASCE.
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Published online: Oct 1, 1983
Published in print: Oct 1983
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