Implementation of a new thermo-viscoplastic soil model using FEniCS platform

Other conference contribution, 2024

The heating and cooling processes (e.g., imposed by energy geostructures) may cause undesired displacement of soil, which in turn may impact the long-term stability of the geothermal structures. This is true especially those installed in sensitive clays due to the high dependence of their creep behaviour on the temperature. This paper presents a numerical implementation algorithm for an enhancement of an existing hydro-mechanical model into a Finite Element code based on FEniCS platform. It also includes a validation example against experimental data of thermal oedometer tests. The quantitative comparison to experimental results supported the suitability of the framework.