Vertical and horizontal dynamic response of suction caisson foundations

Studia Geotechnica et Mechanica

article

Soumia Bouneguet¹  Salah Messioud¹  Daniel Dias² 

[1] LGCE Department of Civil Engineering, University of Jijel;3SR Laboratory/Polytech Grenoble Alpes University

关键词: Suction Caisson Foundation;    Dynamic Impedance;    Soil–Structure Interaction;    Numerical Model;    Absorbing Boundary;   

DOI  :  10.2478/sgem-2022-0018

学科分类：社会科学、人文和艺术（综合）

来源: Walter de Gruyter GmbH

【 摘 要 】

In this article, the dynamic response of suction caisson foundations is studied using a three-dimensional finite element model with an absorbing boundary. The adopted formulation is based on the substructuring method. This formulation has been applied to analyze the effect of soil–structure interaction on the dynamic response of the suction foundation as a function of the kind of load. The suction caisson foundations are embedded in viscoelastic homogenous soils and subjected to external harmonic forces. For each frequency, the dynamic impedance connects the applied forces to the resulting displacement. The constitutive elements of the system are modeled using the finite element volumes and shell elements. The numerical results for the dynamic response of the suction foundations are presented in terms of vertical and horizontal displacements as well as vertical and horizontal dynamic impedances. The results indicated that the overall dynamic response is highly affected by the suction caisson diameter, the soil stiffness variation, and the suction caisson length.

【 授权许可】

CC BY