Micromechanical modeling of the Compression of the Damaged Zone experiment in the Callovo-Oxfordian formation

Micromechanical modeling of the Compression of the Damaged Zone experiment in the Callovo-Oxfordian formation

<p>A theoretical model of the Compression of the Damaged Zone experiment is proposed. The tools of micromechanics are used to represent the fractured zone. Assuming an elastic behavior of the sound COx claystone and a simplified geometry of the drift, an analytical solution is presented and...

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Main Authors: J. Bluthé, B. Bary, E. Lemarchand
Format: Article
Language:English
Published: Copernicus Publications 2018-07-01
Series:Advances in Geosciences
Online Access:https://www.adv-geosci.net/45/25/2018/adgeo-45-25-2018.pdf
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spelling doaj-c148712cdd0f41b0a794f690af643ad72020-11-24T21:29:10ZengCopernicus PublicationsAdvances in Geosciences1680-73401680-73592018-07-0145253310.5194/adgeo-45-25-2018Micromechanical modeling of the Compression of the Damaged Zone experiment in the Callovo-Oxfordian formationJ. Bluthé0J. Bluthé1B. Bary2E. Lemarchand3Den-Service d’Etude du Comportement des Radionucléides (SECR), CEA, Université Paris-Saclay, 91191, Gif-sur-Yvette, FranceLaboratoire NAVIER, Ecole des Ponts ParisTech, 6/8 avenue Blaise Pascal, CHAMPS SUR MARNE, 77455 MARNE LA VALLEE CEDEX 2, FranceDen-Service d’Etude du Comportement des Radionucléides (SECR), CEA, Université Paris-Saclay, 91191, Gif-sur-Yvette, FranceLaboratoire NAVIER, Ecole des Ponts ParisTech, 6/8 avenue Blaise Pascal, CHAMPS SUR MARNE, 77455 MARNE LA VALLEE CEDEX 2, France<p>A theoretical model of the Compression of the Damaged Zone experiment is proposed. The tools of micromechanics are used to represent the fractured zone. Assuming an elastic behavior of the sound COx claystone and a simplified geometry of the drift, an analytical solution is presented and the crack closure is determined as a function of distance from the drift wall for two loading cases: a prescribed 4&thinsp;MPa pressure and a stress-free strain with 1&thinsp;% average value to describe the swelling due to resaturation. The results are in agreement with experimental observations and give insights into the heterogeneous character of self-sealing in the damaged zone.</p>https://www.adv-geosci.net/45/25/2018/adgeo-45-25-2018.pdf
collection DOAJ
language English
format Article
sources DOAJ
author J. Bluthé
J. Bluthé
B. Bary
E. Lemarchand
spellingShingle J. Bluthé
J. Bluthé
B. Bary
E. Lemarchand
Micromechanical modeling of the Compression of the Damaged Zone experiment in the Callovo-Oxfordian formation
Advances in Geosciences
author_facet J. Bluthé
J. Bluthé
B. Bary
E. Lemarchand
author_sort J. Bluthé
title Micromechanical modeling of the Compression of the Damaged Zone experiment in the Callovo-Oxfordian formation
title_short Micromechanical modeling of the Compression of the Damaged Zone experiment in the Callovo-Oxfordian formation
title_full Micromechanical modeling of the Compression of the Damaged Zone experiment in the Callovo-Oxfordian formation
title_fullStr Micromechanical modeling of the Compression of the Damaged Zone experiment in the Callovo-Oxfordian formation
title_full_unstemmed Micromechanical modeling of the Compression of the Damaged Zone experiment in the Callovo-Oxfordian formation
title_sort micromechanical modeling of the compression of the damaged zone experiment in the callovo-oxfordian formation
publisher Copernicus Publications
series Advances in Geosciences
issn 1680-7340
1680-7359
publishDate 2018-07-01
description <p>A theoretical model of the Compression of the Damaged Zone experiment is proposed. The tools of micromechanics are used to represent the fractured zone. Assuming an elastic behavior of the sound COx claystone and a simplified geometry of the drift, an analytical solution is presented and the crack closure is determined as a function of distance from the drift wall for two loading cases: a prescribed 4&thinsp;MPa pressure and a stress-free strain with 1&thinsp;% average value to describe the swelling due to resaturation. The results are in agreement with experimental observations and give insights into the heterogeneous character of self-sealing in the damaged zone.</p>
url https://www.adv-geosci.net/45/25/2018/adgeo-45-25-2018.pdf
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AT bbary micromechanicalmodelingofthecompressionofthedamagedzoneexperimentinthecallovooxfordianformation
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