Water wave driven seepage in sediment and parameter inversion based on pore pressure data

Water wave over a porous sea bottom drives a seepage flux into and out of t he sediment. The volume of fluid exchange per wave cycle and per wave lengt h may be tied to the mass transfer rate of contaminant in sediment. In the first part of the paper, the analytical solution of seepage flux is present ed based on the Riot theory of poroelasticity. Parameter effect on the seep age flux as well as on the pore pressure is examined. In the second part, e mpirical relationships are introduced to reduce the data requirement of the model to two parameters: the porosity and the degree of saturation. With t he existence of a multi-sensor piezometer known as 'MPAS', the pore pressur e data in the sediment can be collected. Utilizing the empirical relations, parameter inversion can be achieved based on pore pressure data alone. Cop yright (C) 1999 John Wiley & Sons, Ltd.