COMPARISON OF THE DISCRETE METHOD AND THE CONTINUOUS METHOD TO OBTAIN THE VERTICAL AND HORIZONTAL DISPLACEMENTS IN PILES, APPLYING THE DYNAMIC SOIL-STRUCTURE INTERACTION.

Abstract

This article presents the comparison of the results of the discrete model and the continuous model calibrated with the load test, applied to a group of piles used to support a port facility. Given the importance of the work and complexity of the acting load system, it is necessary to evaluate the geotechnical behavior using the dynamic soil-structure interaction (IDSE). Vertical and horizontal displacements are obtained with methodologies that take into account the deformability of the terrain under static and dynamic loads. To consider the soil-structure interaction, a computational model was required in Autodesk Robot Analysis Professional software for the discrete model by determining the soil stiffness coefficients with the Bowles formulas. The Plaxis 3D foundation software was used for the continuous model, using the Mohr Coulomb soil constitutive model. The result confirms the need for calibration of the continuous model from the load test. The discrete model is adjusted, because this model is the most used in the modeling of structures, introducing the deformability of the terrain through the IDSE.