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Experimental identification of mobile particles in suffusible non cohesive soils / Mohamad R. Salehi Sadaghiani in European journal of environmental and civil engineering, Vol. 15 N° 8 (Août 2011) 

Public ISBD [article]  in European journal of environmental and civil engineering > Vol. 15 N° 8 (Août 2011) . - pp. 1155-1165 Titre : Experimental identification of mobile particles in suffusible non cohesive soils Titre original : Identification expérimentale des particules mobiles dans les sols sans cohésion soumis à la suffusion Type de document : texte imprimé Auteurs : Mohamad R. Salehi Sadaghiani, Auteur ; Karl Josef Witt, Auteur Année de publication : 2012 Article en page(s) : pp. 1155-1165 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Suffusion  Mobile  particles  Suffusive  particles  Hydraulic  earth  structure Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : The suffusion processes could be generated by internal seepage flows within dams and dikes. Grain size distribution and porosity change during suffusion processes in negative aspect. Recently the failure of many dams and dikes has been observed and it shows unavoidable necessity of getting more knowledge of this phenomena. With this intention, an experimental device has been developed that can apply hydraulic impact to reconstituted gapgraded non cohesive soils. With a new developed evaluation procedure we were capable to identify the mobile and suffusive particles. It was concluded that the degree of suffusion of a soil is closely related to the local segregation of the particles inside the soil body. The extent of suffusion was dependent on the homogeneity of the soil. The study emphasizes the complexity of effects of particle arrangement on the degree of suffusibility. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/article.jsp?articleId=16705 [article] Experimental identification of mobile particles in suffusible non cohesive soils = Identification expérimentale des particules mobiles dans les sols sans cohésion soumis à la suffusion [texte imprimé] / Mohamad R. Salehi Sadaghiani, Auteur ; Karl Josef Witt, Auteur . - 2012 . - pp. 1155-1165. Génie Civil Langues : Anglais (eng) in European journal of environmental and civil engineering > Vol. 15 N° 8 (Août 2011) . - pp. 1155-1165 Mots-clés : Suffusion  Mobile  particles  Suffusive  particles  Hydraulic  earth  structure Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : The suffusion processes could be generated by internal seepage flows within dams and dikes. Grain size distribution and porosity change during suffusion processes in negative aspect. Recently the failure of many dams and dikes has been observed and it shows unavoidable necessity of getting more knowledge of this phenomena. With this intention, an experimental device has been developed that can apply hydraulic impact to reconstituted gapgraded non cohesive soils. With a new developed evaluation procedure we were capable to identify the mobile and suffusive particles. It was concluded that the degree of suffusion of a soil is closely related to the local segregation of the particles inside the soil body. The extent of suffusion was dependent on the homogeneity of the soil. The study emphasizes the complexity of effects of particle arrangement on the degree of suffusibility. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/article.jsp?articleId=16705