Wave–Seabed–Structure Interaction (WSSI) Analysis of Coastal and Offshore Structures

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Coastal Engineering".

Deadline for manuscript submissions: 20 February 2026 | Viewed by 1474

Special Issue Editors


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Guest Editor
College of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
Interests: fluid–seabed–structure interactions; solute transport; offshore renewable energy
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Guest Editor
1. Department of Civil Engineering, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
2. BM SUMER Consultancy & Research, Maslak, Istanbul, Turkey
Interests: flow–seabed–structure interaction; liquefaction around marine structures; scour; turbulent flows
Special Issues, Collections and Topics in MDPI journals

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Guest Editor

Special Issue Information

Dear Colleagues,

With the continuous advancement of coastal and geotechnical engineering construction in marine environments, and also with the emerging need for offshore renewable energy infrastructure (including bottom-fixed and floating wind, tidal, OWC devices, etc.), the topic of wave–seabed–structure interactions and the associated foundation stability near coastal and offshore installations has attracted a great deal of attention from academic researchers and industry consultants. Consequently, the objective of this Special Issue is to collect research papers in the field of marine hazards, including geological environments, marine geology, hydrodynamics, fluid environments, wave–seabed interactions, and the associated liquefaction and scouring processes; the stability of marine infrastructure; sediment transport in marine environments; the application of artificial intelligence to the prediction and assessment of marine geotechnics; the protection of marine infrastructure, etc. This Special Issue invites contributions comprising in situ observations, laboratory tests, numerical simulations, and theoretical analyses on the above research areas. In addition to research articles, contributions may also take the form of case studies and review articles. We warmly invite contributions from researchers and practitioners seeking to advance understanding of wave–seabed–structure interactions and ensure the resilience of future marine infrastructure.

Prof. Dr. Hongyi Zhao
Prof. Dr. V. S. Ozgur Kirca
Prof. Dr. Dong-Sheng Jeng
Guest Editors

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Keywords

  • wave (current)–seabed interactions
  • stability and design of marine infrastructures
  • seabed response and liquefaction
  • scour
  • morphodynamics and sediment transport
  • solute transport in marine environment
  • marine geohazard and resilience
  • cyclic loading including waves, current and earthquakes
  • application of artificial intelligence in marine geotechnics
  • offshore renewable energy infrastructure

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Published Papers (3 papers)

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Research

32 pages, 2692 KB  
Article
Analytical Solution for Dynamic Responses of Distinct Tubular Piles Under Vertical Seismic Excitation Considering Water–Pile–Soil Interaction
by Yiming Huang, Jiaxi Zhou, Xin Li, Yichen Liu and Piguang Wang
J. Mar. Sci. Eng. 2025, 13(11), 2158; https://doi.org/10.3390/jmse13112158 - 14 Nov 2025
Viewed by 249
Abstract
Offshore tubular pile systems in earthquake-active marine regions face risks from vertical seismic excitation, water dynamics, and pile–soil interactions. Thus, an analytical solution for offshore tubular piles considering multi-physical field coupling (the mutual interactions between seawater, tubular pile, and surrounding soil) is developed [...] Read more.
Offshore tubular pile systems in earthquake-active marine regions face risks from vertical seismic excitation, water dynamics, and pile–soil interactions. Thus, an analytical solution for offshore tubular piles considering multi-physical field coupling (the mutual interactions between seawater, tubular pile, and surrounding soil) is developed to investigate their dynamic responses under vertical seismic loading. Firstly, the dynamic response of the tubular pile system is decomposed into free-field and scattered-field components. The governing equations for water, soil, and tubular piles (one-dimensional and three-dimensional tubular pile models) are established, with the strict enforcement of boundary conditions such as displacement continuity and stress equilibrium. Then, analytical solutions for both one-dimensional and three-dimensional tubular pile models are derived. The proposed framework is validated by comparison with existing literature solutions, confirming its rationality. Subsequently, parametric analyses are conducted to explore the influences of key factors. The results indicate that it is essential to consider the coupled effects of vertical earthquakes and water–pile–soil interaction in the design of offshore tubular piles, as neglecting multi-field coupling or adopting oversimplified models can lead to inaccurate predictions of dynamic responses. Full article
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22 pages, 5659 KB  
Article
Lateral Instability of Submarine Pipelines on Sloping Silt Seabeds: Experimental Investigation and an Improved Predictive Model
by Dang Zhao, Yang He, Yumin Shi, Ning Wang, Jun Liu and Ying Zhang
J. Mar. Sci. Eng. 2025, 13(11), 2147; https://doi.org/10.3390/jmse13112147 - 13 Nov 2025
Viewed by 363
Abstract
Lateral pipe-soil interaction is crucial for the on-bottom stability design of submarine pipelines, particularly on deep-water sloping silt seabeds. To address this, a mechanical-actuator facility has been specially designed and utilized to simulate the lateral instability process of a pipe on silt slopes [...] Read more.
Lateral pipe-soil interaction is crucial for the on-bottom stability design of submarine pipelines, particularly on deep-water sloping silt seabeds. To address this, a mechanical-actuator facility has been specially designed and utilized to simulate the lateral instability process of a pipe on silt slopes (α) ranging from −15° to +15°. In this study, variations in the dimensionless submerged pipeline weight (G = 0.607–1.577) and initial embedment ratios (|e0|/D = 0.01–0.50) are also considered. Experimental results reveal several key findings. First, brittle pipe-soil responses are observed: under embedment ratios larger than 0.05, the breakout soil resistance is dominated by suction due to negative pore pressure generation at the rear of the pipe, whereas under lower embedment ratios, it is primarily governed by interface friction and cohesion. Second, for a constant submerged pipeline weight (G = 1.092), the breakout drag force increases linearly with slope angle, whereas the breakout soil resistance decreases linearly—a difference attributed to the gravitational component Wssinα. Specifically, compared to a horizontal flat seabed, the breakout lateral drag force increases by approximately 33% for upslope instability (α = +15°), but decreases by about 24% for downslope instability (α = −15°). Third, the dimensionless lateral-soil-resistance coefficient on silt increases nonlinearly and monotonically with the slope angle, a trend opposite to that reported for sandy seabeds. Finally, an improved model is proposed that explicitly incorporates silt slope angle, submerged pipeline weight, and embedment ratio. This study aims to offer valuable insights into the stability of pipelines on partially drained continental silt slopes and to support the adoption of slope-specific criteria in future engineering designs. Full article
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24 pages, 9495 KB  
Article
Overall Slip Failure of a Rubble Mound Breakwater Core Under Solitary Waves: A Numerical Investigation
by Chao Liu, Honghu Li, Dongsheng Jeng, Wei Chen, Longxiang Zhou and Weiyun Chen
J. Mar. Sci. Eng. 2025, 13(10), 1940; https://doi.org/10.3390/jmse13101940 - 10 Oct 2025
Viewed by 529
Abstract
The stability of rubble mound breakwaters is highly affected by extreme wave loading. While extensive research has been devoted to wave-induced scour and liquefaction around breakwaters, comprehensive stability evaluations of the rubble mound breakwater core remain limited. This study develops a numerical framework [...] Read more.
The stability of rubble mound breakwaters is highly affected by extreme wave loading. While extensive research has been devoted to wave-induced scour and liquefaction around breakwaters, comprehensive stability evaluations of the rubble mound breakwater core remain limited. This study develops a numerical framework to investigate the stability of rubble mound breakwaters subjected to solitary wave loading. Wave motion is modeled using the Navier–Stokes equations, wave-induced pore pressure is computed based on Darcy’s law, and soil behavior is represented through the Mohr–Coulomb constitutive model. The numerical model is validated against experimental data. To assess structural stability, the strength reduction method is employed to calculate the Factor of Safety (FOS) during wave propagation, with the minimum FOS serving as the stability criterion. Furthermore, the influence of key parameters, including wave height, soil shear strength, wave–current interaction, berm dimensions, and slope gradient, on breakwater stability is systematically analyzed. Full article
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