Vertical vibration of a rigid disc embedded in a poroelastic half-space in contact with a fluid half-space

► The vertical vibration of a disc buried in a porous seabed problem is studied. ► The seabed half-space is in contact with a seawater half-space. ► The dynamic responses are compared with the condition that there's no seawater. ► The effect of the seawater is considerable in some cases.