A Constitutive Model for Unsaturated Soils Using Degree of Capillary Saturation and Effective Interparticle Stress as Constitutive Variables

Zhou, A, Wu, S and Li, J 2018, 'A Constitutive Model for Unsaturated Soils Using Degree of Capillary Saturation and Effective Interparticle Stress as Constitutive Variables' in Liangbo Hu, Xiaoqiang Gu, Junliang Tao, and Annan Zhou (ed.) Proceedings of the 4th GeoShanghai International Conference: Multi-physics Processes in Soil Mechanics and Advances in Geotechnical Testing, Springer, Singapore, pp. 79-86.


Document type: Book Chapter
Collection: Book Chapters

Title A Constitutive Model for Unsaturated Soils Using Degree of Capillary Saturation and Effective Interparticle Stress as Constitutive Variables
Author(s) Zhou, A
Wu, S
Li, J
Year 2018
Title of book Proceedings of the 4th GeoShanghai International Conference: Multi-physics Processes in Soil Mechanics and Advances in Geotechnical Testing
Publisher Springer
Place of publication Singapore
Editor(s) Liangbo Hu, Xiaoqiang Gu, Junliang Tao, and Annan Zhou
Start page 79
End page 86
Subjects Civil Geotechnical Engineering
Summary This paper discusses the role of the degree of capillary saturation in modelling the coupled hydro-mechanical behaviour of unsaturated soils and proposes a new constitutive model for unsaturated soils by using the degree of capillary saturation and the effective inter-particle stress. In the model, the shear strength, yield stress and deformation behaviour of unsaturated soils are governed directly by the above two constitutive variables. The model is then validated against a variety of experimental data in the literature, and the results show that a reasonable agreement can be obtained using this new constitutive model.
Copyright notice © Springer Nature Singapore Pte Ltd. 2018
Keyword(s) Unsaturated soil
Degree of capillary saturation
Constitutive model
DOI - identifier 10.1007/978-981-13-0095-0
ISBN 9789811300950
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