A modelling framework for marine structure foundations with example application to vertical breakwater seaward tilt mechanism under breaking wave loads

作者：Stickle M M^*; De La Fuente P; Oteo C; Pastor M; Dutto P

来源：Ocean Engineering, 2013, 74: 155-167.

DOI：10.1016/j.oceaneng.2013.09.004

• Generalized biot
• Generalized plasticity
• Finite element method
• Marine structure foundations
• Vertical breakwater seaward tilt

A theoretical and numerical framework to model the foundation of marine structures is presented. The theoretical framework includes two main components: (i) a mathematical model to properly represent soil skeleton-pore fluids interaction based on the Generalized Blot formulation, (ii) an advanced constitutive model to reproduce the nonlinear soil behavior based on the Generalized Plasticity framework. Apart from these two main components, suitable boundary conditions are of paramount importance. The proposed theoretical framework includes: (i) hydraulic boundary conditions to simulate the interaction between waves, sea bed and maritime structures, (ii) soil-structure interaction conditions to reproduce accurately the principal loads transmitted to the foundation, and (iii) radiation boundary conditions to make the computational domain finite. The finite element method is adopted in order to achieve accurate and robust approximate solutions of the governing equations. The proposed theoretical and numerical framework is applied to the analysis of the seaward tilt mechanism induced by the action of breaking waves over a vertical breakwater. The results numerically attained are in agreement with the main conclusions drawn from the literature associated with this failure mechanism.

• 出版日期2013-12-1