This study explores the modeling of the behavior of piles used as deep foundations when subjected to axial or lateral loads and highlights the importance of taking soil-pile interaction into account. M Numerical modeling was performed using Robot Structural Analysis (& REX Piles) software, recognized for structural calculations, allowing an alternative numerical approach to analytical resolution. REX Piles is a complement to Robot Structural Analysis (RSA) that allows the elastoplastic interaction between piles and soil to be taken into account in the analysis of structures resting on piles. It allows the elastic characteristics of the pile base support to be specified and the distribution of reaction modules (horizontal and vertical) along the pile to be calculated. Subsequently, after applying the loads, the results of the internal forces and displacements along the pile were assessed using RSA. This comparative study reveals a similarity in the diagrams of the internal forces transmitted. The lateral displacements are almost identical, which can be explained by the use of the same calculation model, the Winkler model, in both methods. However, the values of the vertical displacements along the pile differ due to the distinct calculation approaches of the two methods.
