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Influence of Hydraulic Hysteresis on Effective Stress in Unsaturated Clay
Authors: Anuchit Uchaipichat
Abstract:A comprehensive program of laboratory testing on a compacted kaolin in a modified triaxial cell was perform to investigate the influence of hydraulic hysteresis on effective stress in unsaturated soils. The test data are presented on a range of constant suction shear tests along wetting and drying paths. The values of effective stress parameter χ at different matric suction were determined using the test results. The effect of hydraulic hysteresis phenomenon on the effective stress was observed. The values of effective stress parameter χ obtained from the experiments were compared with those obtained from the expressions proposed in literature.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1060976Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1288
 R. W. Lewis, and B. A. Schrefler, The Finite Element Method in the Deformation and Consolidation of Porous Media, John Wiley and Sons, UK, 1987.
 Y. Kohgo, M. Nakano, and T. Miyazaki, "Theoretical aspects of constitutive modelling for unsaturated soils," Soils and Foundations, Vol. 33, No. 4, 1993, pp. 49-63.
 D. C. Sheng, S. W. Sloan, and A. Gens, "Finite element formulation and algorithms for unsaturated soils. Part I: Theory," International Journal for Numerical and Analytical Methods in Geomechanics, vol. 27, no. 9, 2003, pp. 745-765.
 B. Loret, and N. Khalili, "An effective stress elastic-plastic model for unsaturated porous media," Mechanics of Materials, vol. 34, 2002, pp. 97-116.
 D. Gallipoli, A. Gens, R. Sharma, and J. Vaunat, "An elasto-plastic model for unsaturated soil incorporating the effects of suction and degree of saturation on mechanical behaviour," Geotechnique, vol. 53, no. 1, 2003, pp. 123-135.
 A. W. Bishop, The Principle of Effective Stress, Teknish Ukebladk, Norway, 1959, pp. 859-863.
 J. D. Coleman, "Stress-strain relations for partly saturated soils," Geotechnique, Vol. 12, No. 4, 1962, pp. 348-350.
 N. Khalili, F. Geiser, and G. E. Blight, "Effective stress in unsaturated soils, a review with new evidence," International Journal of Geomechanics, vol. 4, no. 2, 2004, pp. 115-126.
 J. W., Hilf, An Investigation of Pore Pressure in Compacted Cohesive Soils, Technical Memorandum 654. Denver, CO: US Bureau of Reclamation, 1956.
 D. G., Toll, The Behaviour of Unsaturated Compacted Naturally Ocurring Gravel, PhD Thesis, The University of London, Imperial College of Science and Technology, London, UK, 1988.
 Y. J. Cui, and P. Delage, "Yielding and plastic behavior of an unsaturated compacted silt," Geotechnique, vol. 46, no. 2, 1996, pp. 291-311.
 E. J. Macari, J. K. Parker, and N. C. Costes, "Measurement of volume changes in triaxial tests using digital imaging techniques," Geotechnical Testing Journal, Vol. 20, No. 1, 1997, pp. 102-109.
 A. Uchaipichat, Experimental Investigation and Constitutive Modelling of Thermo-Hydro-Mechanical Coupling in Unsaturated Soils, PhD Thesis, The University of New South Wales, NSW, AUSTRALIA, 2005.