Proceedings of the Eleventh (2014) Pacific/Asia Offshore Mechanics Symposium
A finite element model for the pore pressure responses under the action of combined waves and current is proposed and verified with the existing experimental data. In this numerical model, both transient and residual pore pressure responses are simulated simultaneously. The numerical results indicate that the transient pore pressure is dominant in the upper part of the seabed while the residual component prevails in the lower one. Parametric studies are conducted to investigate the effects of the current velocity, the wave steepness, and the soil permeability on the pore pressure responses. Imposing a following or opposing current upon waves has much effect on pore pressure distributions in the porous seabed.