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Embankments over soft clay deposits / Henrique Oliveira Magnani in Journal of geotechnical and geoenvironmental engineering, Vol. 136 N° 1 (Janvier 2010) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 136 N° 1 (Janvier 2010) . - pp. 260-264 Titre : Embankments over soft clay deposits : contribution of basal reinforcement and surface sand layer to stability Type de document : texte imprimé Auteurs : Henrique Oliveira Magnani, Auteur ; Mauricio Ehrlich, Auteur ; Marcio S. S. Almeida, Auteur Article en page(s) : pp. 260-264 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Soft  clay  Surface  sand  layer  Reinforcement  Test  embankments  Monitoring  Stability  analyses Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : This paper evaluates the significance of basal reinforcement and the presence of the surface sand layer in the stability. This evaluation is carried out by means of field measurements and stability analyses of three test embankments on soft clay taken to failure. Two of the test embankments were reinforced and one was unreinforced. Stability analyses were carried out taking into account measured values of reinforcement tension forces during construction. The set of analyses have shown that the top sand layer was more important to the stability of the embankments than the basal reinforcement. The cases studied have also shown that the conventional design practice that assumes for the reinforcement a fixed tension contribution may lead to unrealistic higher factor of safety. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JGGEFK&ONLINE=YES&s [...] [article] Embankments over soft clay deposits : contribution of basal reinforcement and surface sand layer to stability [texte imprimé] / Henrique Oliveira Magnani, Auteur ; Mauricio Ehrlich, Auteur ; Marcio S. S. Almeida, Auteur . - pp. 260-264. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 136 N° 1 (Janvier 2010) . - pp. 260-264 Mots-clés : Soft  clay  Surface  sand  layer  Reinforcement  Test  embankments  Monitoring  Stability  analyses Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : This paper evaluates the significance of basal reinforcement and the presence of the surface sand layer in the stability. This evaluation is carried out by means of field measurements and stability analyses of three test embankments on soft clay taken to failure. Two of the test embankments were reinforced and one was unreinforced. Stability analyses were carried out taking into account measured values of reinforcement tension forces during construction. The set of analyses have shown that the top sand layer was more important to the stability of the embankments than the basal reinforcement. The cases studied have also shown that the conventional design practice that assumes for the reinforcement a fixed tension contribution may lead to unrealistic higher factor of safety. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JGGEFK&ONLINE=YES&s [...]