Journal
COMPUTERS AND GEOTECHNICS
Volume 92, Issue -, Pages 132-155Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2017.07.021
Keywords
Finite element method; Multiphase flow; Bentonite; THM behaviour; Nuclear waste repositories
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Funding
- KYT Finnish Research Programme on Nuclear Waste Management via THEBES
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This paper describes a thermo-hydro-mechanical framework suitable for modelling the behaviour of unsaturated soils. In particular, this paper focuses on bentonite clay subjected to a thermo-hydro-mechanical load, as in the case of nuclear waste engineering barriers. The paper gives a theoretical derivation of the full set of coupled balance equations governing the material behaviour as well as an extended physical interpretation. Finally, a finite element discretisation of the equations and number of simulations verifying their implementation into a custom finite element code is provided. Some aspects of the formulation are also validated against experimental data. (C) 2017 The Authors. Published by Elsevier Ltd.
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