Attenuation of Groundwater Flow Due to Irregular Waves in Permeable Sea Bottom

Abstract

The disappearance of wave energy in porous medium, expressed by the decreasing pore pressure, depends on the properties of the soil matrix and compressibility of water in the matrix pores. On the other hand, the compressibility of pore water depends to a large extent on the content of air/gas in water. Thus, it seems that the problem of water circulation resulting from surface waves is in fact a problem from the theory of multiphase media. Transmittance functions between surface waves and pore pressure at different depths as a result of the linear wave theory well reproduce the experimental data at frequencies close to the spectrum of peak energy. © Springer International Publishing Switzerland 2014.