Three-dimensional numerical and analytical study of horizontal group of square anchor plates in sand

Hicham Mokhbi (1) , Mekki Mellas (1) , Abdelhak Mabrouki (1) , Jean-Michel Pereira (2)

1 BISKRA - Université Mohamed Khider de Biskra
2 navier umr 8205 - Laboratoire Navier

In this paper, numerical and analytical methods are used to evaluate the ultimate pullout capacity of a group of square anchor plates in row or square configurations, installed horizontally in dense sand. The elasto-plastic numerical study of square anchor plates is carried out using three-dimensional finite-element analysis. The soil is modeled by an elasto-plastic model with a Mohr-Coulomb yield criterion. An analytical method based on a simplified three-dimensional failure mechanism is developed in this study. The interference effect is evaluated by group efficiency η, defined as the ratio of the ultimate pullout capacity of group of N anchor plates to that of a single isolated plate multiplied by number of plates. The variation of the group efficiency η was computed with respect to change in the spacing between plates.

Domaines: Sciences de l'ingénieur [physics]; Mécanique [physics.med-ph]; Mécanique des matériaux [physics.class-ph]; Sciences de l'ingénieur [physics]; Génie civil; Géotechnique

Hicham Mokhbi, Mekki Mellas, Abdelhak Mabrouki, Jean-Michel Pereira. Three-dimensional numerical and analytical study of horizontal group of square anchor plates in sand. Acta Geotechnica, 2018, 13 (1), pp.159-174. ⟨10.1007/s11440-017-0557-x⟩. ⟨hal-02882390⟩