Settlement Analysis of Embankments on Soft Clays
Publication: Journal of Geotechnical Engineering
Volume 111, Issue 4
Abstract
Highly realistic analysis of the consolidation of soft clays is possible within the framework of the traditional concepts of soil mechanics. A practical method is described for predicting the magnitude and rate of settlement and pore water pressure dissipation. Detailed interpretation and evaluation of the consolidation properties of soft clays, including the compressibility parameters, preconsolidation pressure and coefficient of permeability are presented. These properties can be determined from the standard oedometer test with direct permeability measurements. Computer procedure ILLICON, using multi‐layer analysis, includes any variation of consolidation parameters with depth. The proposed method for evaluating the consolidation parameters, and settlement and pore water pressure analyses is illustrated using case histories of two test fills on soft clays. Excellent agreement is obtained between the computed behavior and field observations.
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References
1.
Asaoka, A., “Observational Procedure of Settlement Prediction,” Soils and Foundations, Vol. 18, No. 4, 1978, pp. 88–101.
2.
Casagrande, A., “The Determination of the Preconsolidation Load and Its Practical Significance,” Proceedings, 1st International Conference on Soil Mechanics and Foundation Engineering, Cambridge, Mass., 1936, pp. 60–64.
3.
Casagrande, A., and Fadum, R. E., “Notes on Soil Testing for Engineering Purposes,” Harvard Soil Mechanics Series No. 8, Cambridge, Mass., 1940.
4.
Chang, Y. C. E., “Long Term Consolidation Beneath Test Fills at Vasby, Sweden,” thesis presented to the University of Illinois, at Urbana‐Champaign, Urbana, Ill., in 1969, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
5.
Chang, Y. C. E., “Long Term Consolidation Beneath the Test Fills at Vasby, Sweden,” Report No. 13, Swedish Geotechnical Institute, Linkoping, Sweden, 1981.
6.
Choi, Y. K., “Consolidation Behavior of Natural Clays,” thesis presented to the University of Illinois at Urbana‐Champaign, at Urbana, Ill., in 1982, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
7.
Dascal, O., Larocque, G. S., and Tournier, J. P., “Digue d'Essai pour l'Etude des Tassements d'une Fondation d'Argille Molle et Sensible,” Canadian Geotechnical Journal, Vol. 10, No. 3, 1973, pp. 363–391.
8.
LaRochelle, P., Sarrailh, J., Tavenas, F., Roy, M., and Leroueil, S., “Causes of Sampling Disturbance and Design of a New Sampler for Sensitive Soils,” Canadian Geotechnical Journal, Vol. 18, No. 1, 1981, pp. 52–66.
9.
Lefebvre, G., and Poulin, C., “A New Method of Sampling in Sensitive Clay,” Canadian Geotechnical Journal, Vol. 16, No. 1, 1979, pp. 226–233.
10.
Mesri, G., “Coefficient of Secondary Compression,” Journal of the Soil Mechanics and Foundation Division, ASCE, Vol. 99, No. SM1, Jan. 1973, pp. 123–137.
11.
Mesri, G., and Choi, Y. K., discussion of “Strain Rate Behavior of Saint‐Jean‐Vianney Clay,” by Y. P. Vaid, P. K. Robertson, and R. G. Campanella, Canadian Geotechnical Journal, Vol. 16, No. 4, 1979, pp. 831–834.
12.
Mesri, G., and Choi, Y. K., “Excess Pore Water Pressures During Consolidation,” Proceedings, 6th Asian Regional Conference on Soil Mechanics and Foundation Engineering, Singapore, Vol. 1, 1979, pp. 151–154.
13.
Mesri, G., and Choi, Y. K., discussion of “The Behavior of Embankments on Clay Foundations,” F. Tavenas and S. Leroueil, Canadian Geotechnical Journal, Vol. 18, No. 3, 1981, pp. 460–462.
14.
Mesri, G., and Choi, Y. K., discussion of “Time Effects on the Stress‐Strain Behavior of Natural Soft Clays,” by J. Graham, J. H. A. Crooks and A. L. Bell, Geotechnique, London, England, Vol. 34, No. 3, 1984, pp. 439–442.
15.
Mesri, G., and Choi, Y. K., “The Uniqueness of the End‐of‐Primary (EOP) Void Ratio‐Effective Stress Relationship,” Proceedings, 11th International Conference on Soil Mechanics and Foundation Engineering, San Francisco, Calif., 1985.
16.
Mesri, G., and Godlewski, P. M., “Time‐ and Stress‐Compressibility Interrelationship,” Journal of the Geotechnical Engineering Division, ASCE, Vol. 103, No. GT5, May, 1977, pp. 417–430.
17.
Mesri, G., and Godlewski, P. M., closure to “Time‐ and Stress‐Compressibility Interrelationship,” Journal of the Geotechnical Engineering Division, ASCE, Vol. 105, No. GT1, Jan., 1979, pp. 106–113.
18.
Mesri, G., and Olson, R. E., “Mechanisms Controlling the Permeability of Clays,” Clays and Clay Minerals, Vol. 19, 1971, pp. 151–158.
19.
Mesri, G., and Rokhsar, A., “Theory of Consolidation for Clays,” Journal of the Geotechnical Engineering Division, ASCE, Vol. 100, No. GT8, Aug., 1974, pp. 889–904.
20.
Mesri, G., and Tavenas, F., discussion of “Permeability and Consolidation of Normally Consolidated Soils,” by A. M. Samarasinghe, Y. H. Huang and V. P. Drenevich, Journal of the Geotechnical Engineering Division, ASCE, Vol. 109, No. GT6, June, 1983, pp. 873–878.
21.
Morin, P., Leroueil, S., and Samson, L., “Preconsolidation Pressure of Champlain Clays, Part I, In‐Situ Determination,” Canadian Geotechnical Journal, Vol. 20, No. 4, 1983, pp. 782–802.
22.
Sallfors, G., “Preconsolidation Pressure of Soft, High‐Plastic Clays,” thesis presented to Chalmers University of Technology, al Goteborg, Sweden, in 1975, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
23.
Tavenas, F., Jean, P., Leblond, P., and Leroueil, S., “The Permeability of Natural Soft Clays. Part II: Permeability Characteristics,” Canadian Geotechnical Journal, Vol. 20, No. 4, 1983, pp. 645–660.
24.
Taylor, D. W., Fundamentals of Soil Mechanics, John Wiley and Sons, Inc., New York, N.Y., 1948.
Information & Authors
Information
Published In
Journal of Geotechnical Engineering
Volume 111 • Issue 4 • April 1985
Pages: 441 - 464
Copyright
Copyright © 1985 ASCE.
History
Published online: Apr 1, 1985
Published in print: Apr 1985
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