Analysis of dynamic response of a caisson type gravity quay wall - Seabed soil system under waves

In coastal engineering, though atypical, it is possible that quay-walls are subjected to considerable wave forces. Thus, it is not uncommon to analyze gravity quay-walls against standing wave motion as opposed to seismic excitations which is more common in analysis considerations. In this study, the dynamic response of a caisson type gravity quay wall under standing wave is analyzed. Finite element solutions of the quay wall-seabed system are obtained by using the poroelasticity formulation. Standing wave form is integrated into the finite element model as a boundary condition in terms of force - time and pressure - time histories using the linear wave theory. The dynamic response of the system is obtained in terms of pore pressure, solid displacements and stress distributions in the seabed around the quay wall and in the foundation and the backfill soil.