%0 Journal Article %T Three-dimensional numerical and analytical study of horizontal group of square anchor plates in sand %+ Université Mohamed Khider de Biskra (BISKRA) %+ Laboratoire Navier (navier umr 8205) %A Mokhbi, Hicham %A Mellas, Mekki %A Mabrouki, Abdelhak %A Pereira, Jean-Michel %< avec comité de lecture %@ 1861-1125 %J Acta Geotechnica %I Springer Verlag %V 13 %N 1 %P 159-174 %8 2018-02 %D 2018 %R 10.1007/s11440-017-0557-x %Z Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] %Z Engineering Sciences [physics]/Civil Engineering/GéotechniqueJournal articles %X 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. %G English %2 https://enpc.hal.science/hal-02882390/document %2 https://enpc.hal.science/hal-02882390/file/Revised%20manuscrip%20%2B%20Figures%20V4.pdf %L hal-02882390 %U https://enpc.hal.science/hal-02882390 %~ ENPC %~ CNRS %~ UR-NAVIER %~ NAVIER-GEOTECHNIQUE %~ PARISTECH %~ IFSTTAR %~ GENIECIVIL %~ UNIV-EIFFEL %~ IFSTTAR-UNIVEIFFEL