Performance of pile-supported embankment over soft soil / L. Briançon in Journal of geotechnical and geoenvironmental engineering, Vol. 138 N° 4 (Avril 2012)  

Public ISBD [article]  inJournal of geotechnical and geoenvironmental engineering > Vol. 138 N° 4 (Avril 2012) . - pp. 551–561 Titre : Performance of pile-supported embankment over soft soil : Full-scale experiment Type de document : texte imprimé Auteurs : L. Briançon, Auteur ; B. Simon, Auteur Année de publication : 2012 Article en page(s) : pp. 551–561 Note générale : Géologie appliquée Langues : Anglais (eng) Mots-clés : Embankment Soft soil Monitoring Geotextile Geogrid Full-scale experiment Load transfer platform Pile Résumé : This paper describes a full-scale experiment of pile-supported embankments on soft soil, which is conducted within the French national research project, Amélioration des Sols par Inclusions RIgides (ASIRI), to provide a new design method. This experiment shows the great influence of a granular platform reinforced with geosynthetics in load-transfer mechanisms. The measurements of geosynthetic strains highlight that the maximum strain takes place at the vicinity of pile heads during the construction of an embankment. Measurements also show that the load-transfer behavior of a platform reinforced by a single geotextile is different from that of a platform reinforced by two geogrids, although the final settlement is the same in both sections. From the important measurement data of this full-scale experiment, some considerations on the design and the efficiency evaluation have been proposed. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GT.1943-5606.0000561 [article] Performance of pile-supported embankment over soft soil : Full-scale experiment [texte imprimé] / L. Briançon, Auteur ; B. Simon, Auteur . - 2012 . - pp. 551–561. Géologie appliquée Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 138 N° 4 (Avril 2012) . - pp. 551–561 Mots-clés : Embankment Soft soil Monitoring Geotextile Geogrid Full-scale experiment Load transfer platform Pile Résumé : This paper describes a full-scale experiment of pile-supported embankments on soft soil, which is conducted within the French national research project, Amélioration des Sols par Inclusions RIgides (ASIRI), to provide a new design method. This experiment shows the great influence of a granular platform reinforced with geosynthetics in load-transfer mechanisms. The measurements of geosynthetic strains highlight that the maximum strain takes place at the vicinity of pile heads during the construction of an embankment. Measurements also show that the load-transfer behavior of a platform reinforced by a single geotextile is different from that of a platform reinforced by two geogrids, although the final settlement is the same in both sections. From the important measurement data of this full-scale experiment, some considerations on the design and the efficiency evaluation have been proposed. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GT.1943-5606.0000561

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