Issue |
EPJ Nuclear Sci. Technol.
Volume 6, 2020
Euratom Research and Training in 2019: challenges, achievements and future perspectives
|
|
---|---|---|
Article Number | 23 | |
Number of page(s) | 8 | |
Section | Part 2: Radioactive waste management | |
DOI | https://doi.org/10.1051/epjn/2019045 | |
Published online | 05 May 2020 |
https://doi.org/10.1051/epjn/2019045
Review Article
Beacon: bentonite mechanical evolution
1
Svensk Kärnbränslehantering AB (SKB), Evenemangsgatan 13, Box 3091, 169 03 Solna, Sweden
2
Nagra, Hardstrasse 73, Postfach 280, 5430 Wettingen, Switzerland
3
Radioactive Waste Management, Building 587, Curie Avenue, Harwell Oxford, Didcot, Oxfordshire OX11 0RH, UK
4
Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya (UPC) − BarcelonaTech, Jordi Girona 1-3, Edifici D-2, 08034 Barcelona, Spain
5
Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Abteilung Standortauswahl, Bereich Endlagerung, Theodor-Heuss-Str. 4, 38122 Braunschweig, Germany
6
Andra, 1/7, rue Jean Monnet, Parc de la Croix-Blanche, 92298 Châtenay-Malabry Cedex, France
7
Miljöorganisationernas kärnavfallsgranskning (MKG), Första Långgatan 18, 413 28 Göteborg, Sweden
* e-mail: patrik.sellin@skb.se
Received:
12
March
2019
Accepted:
16
September
2019
Published online: 5 May 2020
The aim of Beacon is to develop the understanding of fundamental processes that lead to material homogenisation, as well as to improve capabilities for numerical modelling. In earlier assessments of bentonite EBS, the mechanical interaction between the installed bentonite components has been neglected and an “ideal” final state has generally been assumed. Key features of the project are (1) re-evaluation of the available knowledge to extract the crucial data to compile the qualitative and quantitative data and to enhance the conceptual understanding. (2) Enhanced, robust and practical numerical tools based on a good scientific understanding, which have the expected predictive capabilities regarding the evolution of engineered barriers and seals. (3) A developed database with experimental data needed by the quantitative models. (4) Verified calculation tools based on experimental results in different scales. The Beacon project is required for the pan-European objectives at building confidence amongst regulators and stakeholders regarding the performance of the engineered barriers in a geological repository.
© P. Sellin et al., published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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