eng Science and Education Publishing American Journal of Materials Science and Engineering 2333-4673 2019-12-12 7 1 12 20 10.12691/ajmse-7-1-3 AJMSE2019713 article Oustasse Abdoulaye SALL oustaz.sall@univ-thies.sn 1 Déthié SARR 2 Makhaly BA 2 Atsou Edem TCHAKOU 2 Department of Civil Engineering, UFR SI, University of Thiès, Thiès, Senegal Department of Geotechnical Engineering, UFR SI, University of Thiès, Thiès, Senegal This paper studies the behavior of an isolated pile under static axial load and aims to analyze this type of foundation taking into account the soil-structure interaction. The implemented approach is a finite element analysis of a numerical behavior model of the soil-pile system, with emphasis on the behavioral parametric study of the system. A three-dimensional numerical model taking into account the geometric, mechanical and geotechnical parameters of the soil was used for modeling on Ansys using finite element method (FEM). This allowed us to study the influence of soil behavior (elastic or elastoplastic perfect) on the response of the pile under axial load. The study also shows that the increase of the soil reaction module gives rise to a "dome effect" or a much more pronounced thrust in the elastoplastic domain at a certain depth. The study also shows an increase of the reaction module of the soil mass with the depth and consequently a decrease of the deformations. http://pubs.sciepub.com/ajmse/7/1/3/ajmse-7-1-3.pdf mechanical properties soil reaction module soil-pile interaction numerical modeling Ansys finite element method pile