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Assumptions in equilibrium analysis and experimentation in unsaturated soil.

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Murray, E. J. and Brown, J. (2006) Assumptions in equilibrium analysis and experimentation in unsaturated soil. In: Proceedings of the Fourth International Conference on Unsaturated Soils. American Society of Civil Engineers, pp. 2401-2407. ISBN 978-0784408025 [Book section]

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Abstract

The fundamental considerations and assumptions in laboratory equilibrium tests on soils in the triaxial cell are examined using the principles of virtual work and theromodynamics. Compliance with the laws of thermodynamics necessitates that the work energy equation, thus the stresses, maybe derived from the thermodynamic potential. At equilibrium the thermodynamic potential is a minimum and it is shown that this can be written in a similar form for both isotropic and anisotropic loading conditions but for the latter the mean stress replaces the isotropic pressure. The significance of the extensive variable terms making up the thermodynamic potential is also described. The analysis is applicable to soils at any degree of saturation.

Item Type:Book section
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Art, Design and the Built Environment > School of the Built Environment
Research Institutes and Groups:Built Environment Research Institute
Built Environment Research Institute > Centre for Sustainable Technologies (CST)
ID Code:9409
Deposited By:Dr Jane Boyd
Deposited On:23 Feb 2010 15:37
Last Modified:23 Feb 2010 15:37

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