Theoretical analysis of the behavior of a model seabed subjected to water wave excitation is presented. The experiments were performed in the wave flume at the Danish Technological University in Lyngby. Such experiments are unique in engineering sciences and therefore provide unique empirical data for testing various models of the seabed. A controversial explanation of the experiments is presented in the literature. The goal of this research was to study pore pressure changes caused by water waves and the subsequent liquefaction of the seabed. The authors of the present contribution offer their own theoretical explanation of the wave flume experiments and discuss errors found in the literature cited. The analysis is based on the classical soil mechanics, including the Biot type approach
 KIRCA V.S.O., SUMER B.M., FREDSOE J., Residual liquefaction of seabed under standing waves, Journal of Waterway, Port, Coastal & Ocean Engineering, ASCE, 2013, 139(6), 489-501, DOI: 10.1061/(ASCE)WW.1943-5460.0000208.
 MASSEL S.R., PRZYBORSKA A., PRZYBORSKI M., Attenuation of wave-induced groundwater pressure in shallow water. Part 1, Oceanologia, 2004, 46(3), 383-404.
 MASSEL S.R., PRZYBORSKA A., PRZYBORSKI M., Attenuation of wave-induced groundwater pressure in shallow water. Part 2, Oceanologia, 2005, 47(3), 291-323.
 SAWICKI A., Mechanics of seabed liquefaction and resolidification, Archives of Mechanics, 2014, 66(5), 307-328.
 SAWICKI A., The Puzzle of Soil Liquefaction, IBW Publishing House, Gdańsk 2014.
 SAWICKI A., MIERCZYŃSKI J., Some effects of intrinsic cyclic loading in saturated sand, Journal of Theoretical and Applied Mechanics, 2015, 53(2), 285-293, DOI: 10.15632/ jtam-pl.53.2.285.
 SAWICKI A., MIERCZYŃSKI J., ŚWIDZIŃSKI W., Apparent creep of saturated sand caused by intrinsic cyclic loading, J. Geotech. & Geoenvironmental ASCE, 2013, 140(2), DOI: 10.1061/(ASCE)GT.1943-5606.0001025.
 SAWICKI A., STAROSZCZYK R., Wave-induced stresses and pore pressures near a mudline, Oceanologia, 2008, 50(4), 539-555.
 SAWICKI A., ŚWIDZIŃSKI W., KULCZYKOWSKI M., Shaking table dynamics of a dry sand layer, Proc. 2nd Int. Conf. on Performance Based Design in Earthquake Geotechnical Engineering, Int. Soc. Soil Mech. Geotech. Eng., Taormina, Italy, 2012, 661-668.
 SAWICKI A., ŚWIDZIŃSKI W., MIERCZYŃSKI J., Moduł ścinania gruntu sypkiego przy małych naprężeniach (Shear modulus of granular soils at low stresses), Czasopismo Techniczne, Politechnika Krakowska, 3-Ś/2012, 2012, 109(27), 91-102.
 SUMER B.M., FREDSOE J., (2002): The Mechanics of Scour in the Marine Environment, World Scientific, New Jersey- Singapore-London-Hong Kong, 2002, DOI: 10.1142/ 9789812777607_0010.
 YAMAMOTO T., KONING H.L., SELLMEIJER H., VAN HIJUM E., On the response of a poro-elastic bed to water waves, Journal of Fluid Mechanics, 1978, 87(1), 193-205. DOI: 10.1017/S0022112078003006.