Advanced Thermo-Hydro-Mechanical modelling features for practical applications in energy geotechnics (Sur la modélisation Thermo-Hydro-Mécanique avancée pour des applications en Géo-énergie)

T.A. Bui, A, Casarella, A. Di Donna, Ronald Brinkgreve

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

Thermal and Thermo-Hydro-Mechanical (THM) analysis is at the core of a broad range of geotechnical engineering applications. In this context, an implicit fully coupled formulation has been implemented in the Finite Element software PLAXIS to perform robustly THM analyses. Advanced constitutive models can be easily defined and implemented with the well-known User-Defined Soil Model (UDSM) module. Recently, another module of User-Defined Flow Model (UDFM) has been developed so that users can implement user-defined fluid and heat transfer models (permeability, thermal conductivity functions etc). These improvements allow to perform advanced research analyses in a practical and user-friendly way. In this paper, the aforementioned formulation and functionalities are briefly summarised. Different examples of benchmark numerical analyses of Engineered Barrier Systems (EBS) in radioactive waste disposals as well as geothermal foundation systems are then presented. The obtained numerical results are verified by comparisons with other simulators and/or experimental data.
Original languageEnglish
Title of host publicationProceedings of the XVII ECSMGE-2019
Subtitle of host publicationGeotechnical Engineering foundation of the future
EditorsHaraldur Sigursteinsson, Sigurður Erlingsson, Bjarni Bessason
PublisherIcelandic Geotechnical Society (IGS)
Pages1-8
Number of pages8
ISBN (Print)978-9935-9436-1-3
DOIs
Publication statusPublished - 2019
EventThe XVII European Conference on Soil Mechanics and Geotechnical Engineering: Geotechnical Engineering, foundation of the future - Reykjavik, Iceland
Duration: 1 Sep 20196 Sep 2019
https://www.ecsmge-2019.com/#

Conference

ConferenceThe XVII European Conference on Soil Mechanics and Geotechnical Engineering
Abbreviated titleECSMGE
CountryIceland
CityReykjavik
Period1/09/196/09/19
Internet address

Keywords

  • Thermo-Hydro-Mechanical coupling;
  • Finite Element Method
  • Geothermal Energy
  • Radioactive Waste Disposal

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