This article reviews recent developments in the interaction between water waves, seabed, and coastal structures. The scope of the review covers theoretical approaches and physical modeling for the wave-induced soil response, wave damping, and sea floor instability around coastal structures. Important advances in this field of study are summarized and scope for future studies is suggested. There are 208 references cited in this review article.

In real ocean environments, currents generally exist simultaneously with ocean waves. However, the most previous investigations for the seabed response have only considered wave loading, ignoring currents. In this study, unlike previous studies, currents are included in the model of seabed response with waves, based on Biot’s poroelastic dynamic theory (u-p approximation). Numerical results reveal that the consideration of currents has significant effect on the seabed response. The opposing current is beneficial to prevent liquefaction, while the following current would worsen the stability of the seabed. The parametric studies indicate that the wave period, water depth, saturation, soil permeability, and thickness of the seabed significantly affect the seabed response under combined loading of waves and currents. The maximum relative difference of the pore pressure between the cases with currents (velocity is -2 m/s) and without currents (pcurrent-pnocurrent)/p0 can reach up to 25% in both coars...

Acknowledgements The authors would like to acknowledge the financial support from Energy Technology Partnership (ETP), Wood Group Kenny, and University of Aberdeen. JH Zheng and JS Zhang would like to acknowledge the financial support from the National Science Fund for Distinguished Young Scholars (51425901) and the 111 Project (B12032). The comments and suggestions provided by the anonymous Reviewers have greatly improved the quality of the final manuscript.Peer reviewedPostprin