Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Numerical Investigation of Cross Influence between Piles in the Dynamic Behavior of Pile Foundations
Submission Author:
Amanda Oliveira , MA
Co-Authors:
Amanda Oliveira, Pérsio Leister de Almeida Barros, Josue Labaki
Presenter: Amanda Oliveira
doi://10.26678/ABCM.COBEM2023.COB2023-0219
Abstract
This paper presents a formulation for analysis of the dynamic behavior of two piles under vertical harmonic loads. The soil was considered as a viscoelastic, transversely isotropic half-space and was modeled by the indirect boundary element method (IBEM). The piles were modeled as one-dimensional bar finite elements with two nodes and one translational degree of freedom per node. The results of this formulation were compared to those obtained using the extended half-space method for different geometric parameters and materials. The results showed that there is a divergence in the solutions obtained by the two methods and that this divergence increases as the proximity between the piles increases. This divergence occurs due to the absence of crossed stress terms in the formulation of the expanded half-space method and shows that despite being numerically less expensive, it is not adequate to represent the behavior of two or more piles.
Keywords
pile groups, Dynamic soil-foundation interaction, coupled methods
