Constitutive modelling of unsaturated soils: discussion of fundamental principles

Title: Constitutive modelling of unsaturated soils: discussion of fundamental principles
Creator: Sheng, D.
Relation: 5th International Conference on Unsaturated Soils (UNSAT 2010). Proceedings of the Fifth International Conference on Unsaturated Soils (Barcelona, Spain 6-8 September, 2010) p. 91-112
Publisher Link: http://dx.doi.org/10.1201/b10526-8
Publisher: Taylor & Francis
Resource Type: conference paper
Date: 2011
Description: An unsaturated soil is not a special type of soil, rather a state of the soil. All soils can be partially saturated with water. Therefore, constitutive models for soils should ideally represent the soil behaviour over entire ranges of possible pore pressure and stress values and allow arbitrary stress and hydraulic paths within these ranges. This paper attempts to present an overview of constitutive modelling for unsaturated soils. In particular, it focuses on the fundamental principles that govern the volume change, shear strength, yield surfaces, water retention and hydro-mechanical coupling. Alternative forms of these principles are critically examined in terms of their advantages and disadvantages. The paper also presents a short summary of implementing constitutive models into the finite element method.
Subject: unsaturated soil; water; constitutive modelling
Identifier: http://hdl.handle.net/1959.13/1066491
Identifier: uon:18159
Identifier: ISBN:9780415604284
Language: eng
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