DECOVALEX-2019 (Task D: INBEB Final Report)

Technical Report · Thu Oct 01 04:00:00 EDT 2020

DOI:https://doi.org/10.2172/1762807· OSTI ID:1762807

Gens, Antonio ^[1]; Alcoverro, Jordi ^[1]; Blaheta, Radim ^[2]; Hasal, Martin ^[2]; Michalec, Zdeněk ^[2]; Takayama, Yusuke ^[3]; Lee, Changsoo ^[4]; Lee, Jaewon ^[4]; Kim, Geon Young ^[4]; Kuo, Chia-Wei ^[5]; Kuo, Wan-Jung ^[5]; Lin, Chung-Yi ^[5]

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1. Universitat Politècnica de Catalunya (CIMNE), Barcelona (Spain). Centre Internacional de Mètodes Numèrics a l'Enginyeria
2. Czech Academy of Sciences, Ostrava-Poruba (Czech Republic). Inst. of Geonics (IGN)
3. Japan Atomic Energy Agency (JAEA), Oarai (Japan)
4. Korea Atomic Energy Research Institute (KAERI), Daejeon (South Korea)
5. National Central Univ. (NCU), Taoyuan City (Taiwan)

The DECOVALEX Project is an on-going international research collaboration, established in 1992, to advance the understanding and modeling of coupled Thermal (T), Hydrological (H), Mechanical (M) and Chemical (C) processes in geological in geological systems. This document is the final report of Task D which was proposed by the DECOVALEX Project and coordinated by CIMNE_UPC, presenting the technical definitions of the problems studied, approaches applied, achievements made and outstanding issues for future research. Task D of the DECOVALEX 2019 project is devoted to the study of the hydro-mechanical (HM) and thermo-hydro-mechanical (THM) Interactions in Bentonite Engineered Barriers (INBEB). Special attention is paid to the evolution of barrier heterogeneity under transient conditions. A proper understanding of the processes occurring during the transient period requires the appropriate simulation of the behavior of the engineered barrier by means of coupled numerical analyses. In this context, the main objective of the Task is to assess the capabilities of numerical formulations and codes to simulate and interpret the HM and THM behavior of the bentonite barrier, with a particular focus on the final state reached on saturation.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE); Ministry of Economy, Trade and Industry of Japan (METI); National Research Foundation of Korea (NRF); Ministry of Science, ICT and Future Planning (MSIT)
• Contributing Organization: DECOVALEX Project
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1762807
• Report Number(s): LBNL--2001267
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES