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Influence of temperature on the permeability of rocks / A. Kozusnikova in Géotechnique, Vol. 61 N° 12 (Décembre 2011) 

Public ISBD [article]  in Géotechnique > Vol. 61 N° 12 (Décembre 2011) . - pp. 1081–1085 Titre : Influence of temperature on the permeability of rocks Type de document : texte imprimé Auteurs : A. Kozusnikova, Auteur ; P. Konecny, Auteur Année de publication : 2012 Article en page(s) : pp. 1081–1085 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Permeability  Temperature  effects  Rocks/rock  mechanics Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Changes in physical properties due to temperature increase have been investigated for three generically different types of rock: marble, sandstone and granite. The Hg-porosity and permeability of the rocks were analysed. The permeability of the specimens was determined during axial loading at a constant triaxial state of stress. Greater permeability changes were registered for rocks with compact structure and low porosity. These types of rock are characterised by line contacts between the grains. They are more sensitive to temperature increase; pores with a radius greater than 500 nm increase due to the temperature influence, with the permeability increasing considerably. DEWEY : 624.15 ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.8.t.034 [article] Influence of temperature on the permeability of rocks [texte imprimé] / A. Kozusnikova, Auteur ; P. Konecny, Auteur . - 2012 . - pp. 1081–1085. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 61 N° 12 (Décembre 2011) . - pp. 1081–1085 Mots-clés : Permeability  Temperature  effects  Rocks/rock  mechanics Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Changes in physical properties due to temperature increase have been investigated for three generically different types of rock: marble, sandstone and granite. The Hg-porosity and permeability of the rocks were analysed. The permeability of the specimens was determined during axial loading at a constant triaxial state of stress. Greater permeability changes were registered for rocks with compact structure and low porosity. These types of rock are characterised by line contacts between the grains. They are more sensitive to temperature increase; pores with a radius greater than 500 nm increase due to the temperature influence, with the permeability increasing considerably. DEWEY : 624.15 ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.8.t.034