A 3D numerical model is established to simulate a wave-induced seabed dynamic response around composite bucket foundations and to consider the sinking processes that are due to negative pressures. The negative pressure has an influence on the pore-pressure of the seabed close to the foundation. The sinking velocity of the foundation has little influence on the wave-induced pore-water-pressure of the seabed. The liquefaction depth around the composite bucket wind turbine foundation decreased as a result of the negative pressure. The effects of the sinking process on seabed response weaken as the negative pressure dissipates.
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2016
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