Abstract : The thermal conductivity of host rocks is an important parameter in the design of deep geological disposal of heat-emitting radioactive waste. Due to bedding, heat transfer in sedimentary rocks is affected by their transversally isotropic structure. In this work, an experimental program is run to measure the thermal conductivities of Boom Clay along various orientations with respect to the bedding plane by using the needle thermal probe technique. Measurements were performed on specimens obtained from cores drilled from the HADES Underground Research Laboratory (URL) at Mol, Belgium, at a depth of 223 m. The thermal conductivity values obtained are in good agreement with those previously published, confirming the thermal anisotropy of Boom Clay. Moreover, the observed changes in thermal conductivity with respect to the distance to the gallery provide further evidence on the extent of the Excavation Damaged Zone around the gallery.
https://hal-enpc.archives-ouvertes.fr/hal-01111299 Contributeur : Yu-Jun CuiConnectez-vous pour contacter le contributeur Soumis le : jeudi 26 avril 2018 - 09:10:09 Dernière modification le : samedi 15 janvier 2022 - 03:48:13 Archivage à long terme le : : mardi 25 septembre 2018 - 06:00:17