Assumptions in equilibrium analysis and experimentation in unsaturated soil.

E. J. Murray, J. Brown

    Research output: Chapter in Book/Report/Conference proceedingChapter

    3 Citations (Scopus)

    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.
    LanguageEnglish
    Title of host publicationProceedings of the Fourth International Conference on Unsaturated Soils
    Pages2401-2407
    Volume2
    Publication statusPublished - Apr 2006

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    thermodynamics
    soil
    compliance
    saturation
    analysis
    energy

    Cite this

    Murray, E. J., & Brown, J. (2006). Assumptions in equilibrium analysis and experimentation in unsaturated soil. In Proceedings of the Fourth International Conference on Unsaturated Soils (Vol. 2, pp. 2401-2407)
    Murray, E. J. ; Brown, J. / Assumptions in equilibrium analysis and experimentation in unsaturated soil. Proceedings of the Fourth International Conference on Unsaturated Soils. Vol. 2 2006. pp. 2401-2407
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    Murray, EJ & Brown, J 2006, Assumptions in equilibrium analysis and experimentation in unsaturated soil. in Proceedings of the Fourth International Conference on Unsaturated Soils. vol. 2, pp. 2401-2407.

    Assumptions in equilibrium analysis and experimentation in unsaturated soil. / Murray, E. J.; Brown, J.

    Proceedings of the Fourth International Conference on Unsaturated Soils. Vol. 2 2006. p. 2401-2407.

    Research output: Chapter in Book/Report/Conference proceedingChapter

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    AU - Brown, J.

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    AB - 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.

    M3 - Chapter

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    VL - 2

    SP - 2401

    EP - 2407

    BT - Proceedings of the Fourth International Conference on Unsaturated Soils

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    Murray EJ, Brown J. Assumptions in equilibrium analysis and experimentation in unsaturated soil. In Proceedings of the Fourth International Conference on Unsaturated Soils. Vol. 2. 2006. p. 2401-2407