Offshore Foundations: Liquefaction and Soil-Structure Interaction

Dear Colleagues,

The interest in offshore wind energy sector, to comply with the global climate agreements, has recently been growing steadily and has provided a significant incentive to evaluate the performance of various types of foundations for offshore wind turbines (OWTs) in different water depths. Many of the new developments in emerging offshore markets such as Asia-Pacific region, and parts of the US, lie in regions where seismic and cyclone impacts present a significant threat to stability and normal functioning of the turbines. Since the majority of offshore wind turbines (OWTs) have previously been installed in areas with low seismic activity (e.g. Northern Europe), the wave or earthquake-induced liquefaction assessment have not been the primary concerns in design of these dynamically sensitive structures.

Lack of engineering practice for managing the risks of operating projects in such natural disaster-prone regions leads to increased risks for developers, turbine manufacturers, designers, and certification bodies.

This special issue aims to publish high-quality papers which share present and future perspectives in analytical, experimental, and computational modelling.

The following topics are covered, but are not limited to:

• Scour, and liquefaction around marine structures (fixed bottom foundations and floating offshore wind turbines)
• Fluid-structure-soil interaction effects
• Condition monitoring of offshore wind turbines in liquefiable soils
• The seismic design considerations, forward rupture directivity effect, submarine landslides and tsunami
• Mechanisms of wave-induced liquefaction around offshore foundations and its consequences

Dr. Amin Barari
Dr. Rui Wang
Dr. Alexandros Petalas
Dr. Domenico Lombardi
Guest Editors

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