Articles | Volume 45
https://doi.org/10.5194/adgeo-45-25-2018
https://doi.org/10.5194/adgeo-45-25-2018
24 Jul 2018
 | 24 Jul 2018

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

Joffrey Bluthé, Benoît Bary, and Eric Lemarchand

Cited articles

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
Andra: Dossier d'options de sûreté – Partie après fermeture (DOS-AF), 2016a. a, b, c
Andra: Dossier d'options de sûreté – Partie exploitation (DOS-EXPL), 2016b. a
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
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
Download
Short summary
A theoretical model of the Compression of the Damaged Zone experiment performed is proposed. One of the key features of the present model is its ability to yield the crack closure. The mechanical and hydric effects are examined seperately: in one case a prescribed pressure is applied at the drift wall, and swelling strains in the cracked zone are introduced in the other to model its resaturation. The intensity of the crack closure is heterogeneous in both cases but is greater in the latter.