Cheikh Ibrahima TINE^1,, Oustasse Abdoulaye SALL¹, Déthié SARR², Aida Ndiouck FAYE¹, Papa Abdourahmane FALL¹

The aim of this study is to gain a better understanding of the behavior of flexible piles subjected to lateral loading and head moment in clay soil, taking into account soil-structure interaction. In order to establish the behavioral model of the assembly, soil-pile interaction models according to different authors were presented. According to several authors, the soil-pile interface is characterized by the soil reaction modulus E_s. This parameter, which characterizes the interaction between the soil and the structure, depends not only on the mechanical and geometric properties of the concrete and the foundation soil. In this context, the model of was used to characterize E_s, which is a function of the rheological parameters of the soil (α and E_M) and the geometric characteristics of the pile. After establishing and solving the behavior model of the rigid soil-pile assembly, the Python programming tool was used to perform the parametric analysis. The results show the significant impact of the interaction model adopted. The analysis also shows that the soil pressure modulus, soil slenderness and pile head forces are more influential than the other model parameters.

Flexible pile, Characterization, Soil-structure interaction, Analytical calculation, Numerical modeling