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MECSOL 2019
7th International Symposium on Solid Mechanics
STATIONARY DYNAMIC RESPONSE OF A CIRCULAR RIGID FOUNDATION SUPPORTED BY A FLEXIBLE PILE AND A HALF-SPACE SUBJECTED TO A VERTICAL INCIDENT WAVE FIELD
Submission Author:
Luis Filipe do Vale Lima , SP
Co-Authors:
Luis Filipe do Vale Lima, Josue Labaki, EUCLIDES MESQUITA
Presenter: Luis Filipe do Vale Lima
doi://10.26678/ABCM.MECSOL2019.MSL19-0099
Abstract
This paper investigates the vertical response of a rigid circular foundation resting on the surface of soil supported by a flexible pile due to incident vertical waves. The soil is modeled as a three-dimensional, transversely isotropic homogeneous half-space. The surface foundation is a rigid, circular plate, presenting inertia properties. The pile is an elastic circular bar, in bonded contact with the soil throughout its length. The soil and the pile responses were obtained through the synthesis of a series of Green’s function. The foundation is supported by the pile and by the soil-foundation interface. The introduction of a weighting parameter in the presented modelling allows the foundation support to vary from being totally supported by the pile to totally supported by the soil-foundation interface or any arbitrary combination of both supporting mechanisms. The numerical results show the influence of the foundation-pile-soil inertia ratios, the relative stiffness of the soil-pile system, on the dynamic response of the foundation due to an incident vertical wave field.
Keywords
Dynamic Soil Structure Interaction, Foundations Dynamics, Pile Dynamics, Green’s Functions
