Dr Marti Lloret-Cabot marti.lloret-cabot@durham.ac.uk
Associate Professor
Relative performance of two unsaturated soil models using different constitutive variables
Lloret-Cabot, Martí; Wheeler, Simon J.; Pineda, Jubert A.; Sheng, Daichao; Gens, Antonio
Authors
Simon J. Wheeler
Jubert A. Pineda
Daichao Sheng
Antonio Gens
Abstract
Mechanical and water retention behaviour of unsaturated soils is investigated in the context of two well established coupled constitutive models, each of which is formulated in terms of a different set of stress state variables or constitutive variables. Incremental relationships describing the volume change and variation of the degree of saturation are derived for each model. These incremental relationships are used to simulate a set of experimental tests on compacted Speswhite kaolin previously reported in the literature. Six individual tests, involving isotropic compression and various forms of shearing, are analyzed in the context of the incremental forms developed, and the model predictions are then compared against experimental results. The results show that, although each constitutive model uses a different set of constitutive variables and a different scheme for coupling mechanical and water retention behaviour, the two sets of model predictions are similar and both sets provide a reasonable match to the experimental results, suggesting that both models are able to capture the relevant features of unsaturated soil behaviour, despite expressing the constitutive laws in different ways.
Citation
Lloret-Cabot, M., Wheeler, S. J., Pineda, J. A., Sheng, D., & Gens, A. (2014). Relative performance of two unsaturated soil models using different constitutive variables. Canadian Geotechnical Journal, 51(12), 1423-1437. https://doi.org/10.1139/cgj-2013-0462
Journal Article Type | Article |
---|---|
Acceptance Date | Jun 26, 2014 |
Online Publication Date | Jul 1, 2014 |
Publication Date | Jul 1, 2014 |
Deposit Date | Oct 2, 2018 |
Publicly Available Date | Nov 21, 2018 |
Journal | Canadian Geotechnical Journal |
Print ISSN | 0008-3674 |
Electronic ISSN | 1208-6010 |
Publisher | Canadian Science Publishing |
Peer Reviewed | Peer Reviewed |
Volume | 51 |
Issue | 12 |
Pages | 1423-1437 |
DOI | https://doi.org/10.1139/cgj-2013-0462 |
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Accepted Journal Article
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