Micromechanical modeling of the Compression of the Damaged Zone experiment in the Callovo-Oxfordian formation
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Published:2018-07-24
Issue:
Volume:45
Page:25-33
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ISSN:1680-7359
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Container-title:Advances in Geosciences
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language:en
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Short-container-title:Adv. Geosci.
Author:
Bluthé Joffrey,Bary Benoît,Lemarchand Eric
Abstract
Abstract. 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 MPa pressure and a stress-free
strain with 1 % 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.
Publisher
Copernicus GmbH
Reference23 articles.
1. Alcolea, A., Kuhlmann, U., Marschall, P., Lisjak, A., Grasselli, G., Mahabadi, O., de La Vaissière, R., Leung, H., and Shao, H.: A pragmatic approach to abstract the excavation damaged zone around tunnels of a geological radioactive waste repository: application to the HG-A experiment in Mont Terri, Geological Society, London, Special Publications, 443, 127–147, 2017. a 2. Andra: Dossier d'options de sûreté – Partie après fermeture (DOS-AF), 2016a. a, b, c 3. Andra: Dossier d'options de sûreté – Partie exploitation (DOS-EXPL), 2016b. a 4. Armand, G., Leveau, F., Nussbaum, C., de La Vaissiere, R., Noiret, A., Jaeggi, D., Landrein, P., and Righini, C.: Geometry and properties of the excavation-induced fractures at the Meuse/Haute-Marne URL drifts, Rock Mech. Rock Eng., 47, 21–41, 2014. a, b, c 5. Blümling, P., Bernier, F., Lebon, P., and Martin, C. D.: The excavation damaged zone in clay formations time-dependent behaviour and influence on performance assessment, Phys. Chem. Earth, Parts A/B/C, 32, 588–599, 2007. a
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