By employing a combination of ice pressure, liquid pressure and total stress as state variables, a new thermoplastic constitutive model has been developed that encompasses
frozen and unfrozen behaviour within a unified effective-stress-based framework. It has been incorporated into a fully coupled thermo-hydro-mechanical (THM) finite element formulation that considers freezing and thawing in water-saturated soils and applied to a large-scale pipeline frost heave test.
CitationSatoshi, N. [et al.]. An elastoplastic model for the THM analysis of freezing soils. A: International Conference on Computational Plasticity. "X International Conference on Computational Plasticity". Barcelona: 2009, p. 1-4.
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