[article] 
inEuropean journal of environmental and civil engineering > Vol. 15 N° 8 (Août 2011) . - pp. 1207-1224

Titre :	Micromechanical modeling of internal erosion
Titre original :	Modélisation micromécanique de l'érosion interne
Type de document :	texte imprimé
Auteurs :	Stéphane Bonelli, Auteur ; Didier Marot, Auteur
Année de publication :	2012
Article en page(s) :	pp. 1207-1224
Note générale :	Génie Civil
Langues :	Anglais (eng)
Mots-clés :	Internal erosion Suffusion Interfacial Homogenization
Index. décimale :	624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes
Résumé :	Suffusion is the internal erosion process by which finer soil particles are detached from the solid matrix, and transported through constrictions by seepage flow. At the macroscopic scale, this is a bulk erosion process and corresponds to a source term in the mass balance equations. This paper constitutes a step towards bridging the gap between the counter intuitive bulk erosion model and our intuition that erosion is essentially an interfacial process. We suggest that a framework within suffusion can be viewed as a clay/water interface erosion at the microsopic scale. The coefficient of surface erosion appears to be a relevant parameter for the suffusion bulk erosion law. The comparison between the results of the present modeling study and previously published experimental data supports the validity of our approach.
DEWEY :	624
ISSN :	1964-8189
En ligne :	http://ejece.revuesonline.com/article.jsp?articleId=16708

[article] Micromechanical modeling of internal erosion = Modélisation micromécanique de l'érosion interne [texte imprimé] / Stéphane Bonelli, Auteur ; Didier Marot, Auteur . - 2012 . - pp. 1207-1224.
Génie Civil
Langues : Anglais (eng)
in European journal of environmental and civil engineering > Vol. 15 N° 8 (Août 2011) . - pp. 1207-1224

Mots-clés :	Internal erosion Suffusion Interfacial Homogenization
Index. décimale :	624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes
Résumé :	Suffusion is the internal erosion process by which finer soil particles are detached from the solid matrix, and transported through constrictions by seepage flow. At the macroscopic scale, this is a bulk erosion process and corresponds to a source term in the mass balance equations. This paper constitutes a step towards bridging the gap between the counter intuitive bulk erosion model and our intuition that erosion is essentially an interfacial process. We suggest that a framework within suffusion can be viewed as a clay/water interface erosion at the microsopic scale. The coefficient of surface erosion appears to be a relevant parameter for the suffusion bulk erosion law. The comparison between the results of the present modeling study and previously published experimental data supports the validity of our approach.
DEWEY :	624
ISSN :	1964-8189
En ligne :	http://ejece.revuesonline.com/article.jsp?articleId=16708