Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Stability analysis of homogenized stone column reinforced foundations using a numerical yield design approach

Abstract : This paper deals with the ultimate bearing capacity of soft clayey soils, rein-forced by stone columns, analyzed in the framework of the yield design theory. Since such geotechnical structures are almost impossible to analyze directly due to the strong heterogeneity of the reinforced soil, an alternative homogenization approach is advocated here. First, numerical lower and upper bound estimates for the macroscopic strength criterion of the stone column reinforced soil are approximated in a rigorous way with convex ellipsoidal sets, which makes the approximated criteria much easier to handle than the initial ones. Then, both static and kinematic approaches are carried out numerically on the homoge-nized problem using the above approximated macroscopic strength domains in an adapted finite element method. The whole numerical procedure is applied on one classical geotechnical problem: the ultimate bearing capacity of stone column reinforced foundations. The strength capacity of the structure is rigor-ously framed and the efficiency of the proposed numerical method is highlighted in terms of accuracy and calculation time.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [40 références]  Voir  Masquer  Télécharger

https://hal-enpc.archives-ouvertes.fr/hal-01087386
Contributeur : Maxime Gueguin <>
Soumis le : mercredi 26 novembre 2014 - 07:48:51
Dernière modification le : vendredi 17 juillet 2020 - 17:09:10
Archivage à long terme le : : vendredi 27 février 2015 - 10:56:59

Fichier

PrePrint_Gueguin_COGE_2014.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

M Gueguin, G Hassen, P de Buhan. Stability analysis of homogenized stone column reinforced foundations using a numerical yield design approach. Computers and Geotechnics, Elsevier, 2015, 64, pp.10 - 19. ⟨10.1016/j.compgeo.2014.11.001⟩. ⟨hal-01087386⟩

Partager

Métriques

Consultations de la notice

366

Téléchargements de fichiers

1181