Understanding the evolution of nuclear waste repositories by performing appropriate experiments – selected investigations at Mont Terri rock laboratory

<p>Any site selection process for a final repository for high-level and heat producing radioactive waste is a national challenge and has to take into account, among others, regional geological settings. In Germany, the site selection has to restart from zero, and all potential host rocks have...

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Main Authors: K. Schuster, M. Furche, H. Shao, J. Hesser, J.-M. Hertzsch, W. Gräsle, D. Rebscher
Format: Article
Language:English
Published: Copernicus Publications 2019-10-01
Series:Advances in Geosciences
Online Access:https://www.adv-geosci.net/49/175/2019/adgeo-49-175-2019.pdf
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author K. Schuster
M. Furche
H. Shao
J. Hesser
J.-M. Hertzsch
W. Gräsle
D. Rebscher
author_facet K. Schuster
M. Furche
H. Shao
J. Hesser
J.-M. Hertzsch
W. Gräsle
D. Rebscher
author_sort K. Schuster
collection DOAJ
description <p>Any site selection process for a final repository for high-level and heat producing radioactive waste is a national challenge and has to take into account, among others, regional geological settings. In Germany, the site selection has to restart from zero, and all potential host rocks have to be considered equal, including argillaceous rocks. Therefore, the Federal Institute for Geosciences and Natural Resources (BGR) performs appropriate experiments in the Swiss Mont Terri rock laboratory, which is located in the Jurassic Opalinus Clay. In this paper, activities and results from actual and still ongoing experiments, with participation of BGR, are presented exemplarily. All experiments aim for a contribution to understand particular aspects regarding the behaviour of underground facilities, BGR's focus lies mainly on aspects of the early lifetime of a repository, namely the construction, post-closure transient, and partly post-closure equilibrium phases. It is obvious that for a full understanding of the evolution of a final repository, knowledge and experience of many different groups, their studies and results covering all aspects, have to be included. In this paper, we can only emphasise a few representative examples on geophysical and geotechnical in-situ site investigations, geotechnical mine-by monitoring, laboratory investigations, and modelling aspects. The combined interpretation of these results enhance interpretations and is a prerequisite for a comprehensive understanding of a repository.</p>
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spelling doaj.art-7f71d33d499b442189267b2a29b434012022-12-22T01:05:49ZengCopernicus PublicationsAdvances in Geosciences1680-73401680-73592019-10-014917518610.5194/adgeo-49-175-2019Understanding the evolution of nuclear waste repositories by performing appropriate experiments – selected investigations at Mont Terri rock laboratoryK. SchusterM. FurcheH. ShaoJ. HesserJ.-M. HertzschW. GräsleD. Rebscher<p>Any site selection process for a final repository for high-level and heat producing radioactive waste is a national challenge and has to take into account, among others, regional geological settings. In Germany, the site selection has to restart from zero, and all potential host rocks have to be considered equal, including argillaceous rocks. Therefore, the Federal Institute for Geosciences and Natural Resources (BGR) performs appropriate experiments in the Swiss Mont Terri rock laboratory, which is located in the Jurassic Opalinus Clay. In this paper, activities and results from actual and still ongoing experiments, with participation of BGR, are presented exemplarily. All experiments aim for a contribution to understand particular aspects regarding the behaviour of underground facilities, BGR's focus lies mainly on aspects of the early lifetime of a repository, namely the construction, post-closure transient, and partly post-closure equilibrium phases. It is obvious that for a full understanding of the evolution of a final repository, knowledge and experience of many different groups, their studies and results covering all aspects, have to be included. In this paper, we can only emphasise a few representative examples on geophysical and geotechnical in-situ site investigations, geotechnical mine-by monitoring, laboratory investigations, and modelling aspects. The combined interpretation of these results enhance interpretations and is a prerequisite for a comprehensive understanding of a repository.</p>https://www.adv-geosci.net/49/175/2019/adgeo-49-175-2019.pdf
spellingShingle K. Schuster
M. Furche
H. Shao
J. Hesser
J.-M. Hertzsch
W. Gräsle
D. Rebscher
Understanding the evolution of nuclear waste repositories by performing appropriate experiments – selected investigations at Mont Terri rock laboratory
Advances in Geosciences
title Understanding the evolution of nuclear waste repositories by performing appropriate experiments – selected investigations at Mont Terri rock laboratory
title_full Understanding the evolution of nuclear waste repositories by performing appropriate experiments – selected investigations at Mont Terri rock laboratory
title_fullStr Understanding the evolution of nuclear waste repositories by performing appropriate experiments – selected investigations at Mont Terri rock laboratory
title_full_unstemmed Understanding the evolution of nuclear waste repositories by performing appropriate experiments – selected investigations at Mont Terri rock laboratory
title_short Understanding the evolution of nuclear waste repositories by performing appropriate experiments – selected investigations at Mont Terri rock laboratory
title_sort understanding the evolution of nuclear waste repositories by performing appropriate experiments selected investigations at mont terri rock laboratory
url https://www.adv-geosci.net/49/175/2019/adgeo-49-175-2019.pdf
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