Experimental study of response pattern of pore water pressure on sandy seabed under wave action

The experiment of wave flume model is adopted to study the action of pore water pressure under the sandy seabed induced by both regular and irregular waves. The influences of water depth, wave height and wave period on the pore water pressure are mainly discussed. The rule of pore water pressure responses is achieved. It is shown that the wave period and wave height remain unchanged, the water pore pressure caused by wave decreases as the water depth increases. When the water depth and wave height remain stable, the water pore pressure grows as the wave period lengthens. Under the condition of fixed water depth and wave period, the augmentation of wave height leads to the increase of the water pore pressure.