Elasto-plasticity of unsaturated soils : laboratory test results on a remoulded silt

Current models of the elasto-plastic behaviour of unsaturated soils contain important underlying assumptions that have not been tested due to a lack of adequate experimental data. To address this issue, the objective of this paper is to provide a comprehensive set of experimental data An extensive experimental program has been performed on a remoulded unsaturated silt. To characterise its elasto-plastic behaviour, samples were taken through various stress paths, including wetting, drying and compression. Experimental results were analysed to provide (1) evidence of suction-induced preconsolidation; (2) dependence of cohesion and shear strength at failure on suction; (3) stiffness in relation to suction and (4) uniqueness of the critical state line.


Published in:
Soils and Foundations, 46, 5, 545-556
Year:
2006
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Note:
Modifications introduced by L. Laloui - Nov. 19, 2006
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Note: The status of this file is: EPFL only


 Record created 2006-11-09, last modified 2018-03-17

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