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Titre :
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Hydraulic conductivity and compressibility of mixtures of Nagoya clay with sand or bentonite (2011)
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Auteurs :
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Y. Watabe, Auteur ;
K. Yamada, Auteur ;
K. Saitoh, Auteur
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Type de document :
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Article : texte imprimé
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Dans :
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Géotechnique (Vol. 61 N° 3, Mars 2011)
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Article en page(s) :
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pp. 211–219
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Note générale :
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Génie Civil
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Langues :
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Anglais
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Index. décimale :
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624 (Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes)
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Tags :
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Clays Compressibility Permeability Fabric/Structure of soils Sands
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Résumé :
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In this study, a series of incremental loading oedometer tests and microscopic observations is carried out in order to investigate the influence of sand/bentonite fractions on hydraulic conductivity and compressibility. If sand particles do not form a skeletal structure, and each particle is independent in the clay matrix, an additive fraction of sand causes a decrease in the compressibility; however, it does not affect the hydraulic conductivity under the same consolidation pressure. The additive fraction of bentonite contributes to a decrease in the hydraulic conductivity, even for clayey materials. In addition, the relationship between the pore-size parameter, which represents the pore entrance size distribution, and the hydraulic conductivity is discussed using a probabilistic model known as the general capillary model.
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DEWEY :
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624.15
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ISSN :
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0016-8505
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En ligne :
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http://www.icevirtuallibrary.com/content/article/10.1680/geot.8.p.087
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