Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anisotropic thermal conductivity of natural Boom Clay
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 223m. 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.
Highlights Thermal conductivity was measured on Boom Clay in three directions. A significant thermal anisotropy was evidenced. The effect of the Excavation Damaged Zone (EDZ) was also evidenced.
Anisotropic thermal conductivity of natural Boom Clay
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 223m. 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.
Highlights Thermal conductivity was measured on Boom Clay in three directions. A significant thermal anisotropy was evidenced. The effect of the Excavation Damaged Zone (EDZ) was also evidenced.
Anisotropic thermal conductivity of natural Boom Clay
Dao, Linh-Quyen (Autor:in) / Delage, Pierre (Autor:in) / Tang, Anh-Minh (Autor:in) / Cui, Yu-Jun (Autor:in) / Pereira, Jean-Michel (Autor:in) / Li, Xiang-Ling (Autor:in) / Sillen, Xavier (Autor:in)
Applied Clay Science ; 101 ; 282-287
03.09.2014
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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