Abstract
This paper presents a coupled elastoplastic constitutive model for predicting the hydraulic and stress-strain-strength behaviour of unsaturated soils. Hydraulic hysteresis in the water-retention behaviour is modeled as an elastoplastic process with the elastic region of the saturation degree. The effect of change in degree of saturation on the stress-strain-strength behaviour and the effect of change in void ratio on the water-retention behaviour are taken into consideration in the model, in addition to the effect of suction on the hydraulic and mechanical behaviour. Model predictions of the stress-strain and water-retention behaviour are compared with those obtained from triaxial tests on unsaturated soil along isotropic compression, triaxial stress paths with or without variation in suction.
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© 2007 Springer Berlin Heidelberg
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Sun, D., Xiang, L. (2007). An Elastoplastic Hydro-mechanical Model for Unsaturated Soils. In: Shi, Y., van Albada, G.D., Dongarra, J., Sloot, P.M.A. (eds) Computational Science – ICCS 2007. ICCS 2007. Lecture Notes in Computer Science, vol 4489. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-72588-6_180
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DOI: https://doi.org/10.1007/978-3-540-72588-6_180
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-72587-9
Online ISBN: 978-3-540-72588-6
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