Wave effects on the anti-liquefaction of the seabed around composite bucket foundation of offshore wind turbines  

作　　者：Li-hua Wang Jin-feng Zhang Run-bo Cai Jing-yuan Li 

机构地区：[1]State Key Laboratory of Hydraulic Engineering Simulation and Safety Tianjin University,Tianjin 300072,China [2]Key Laboratory of Earthquake Engineering Simulation and Seismic Resilience of China Earthquake Administration,Tianjin University,Tianjin 300350,China

出　　处：《Journal of Hydrodynamics》2021年第6期1291-1302,共12页水动力学研究与进展B辑（英文版）

基　　金：Projects supported by the National Natural Science Foundation of China(Grant Nos.51979190,U1906231);the Natural Science Foundation of Tianjin(Grant No.18JCZDJC40200).

摘　　要：By using the open-source software OpenFOAM and the grid generation tool the integrated computer engineering and manufacturing code for computational fluid dynamics(ICEM CFD),a computational fluid dynamics-computational structural dynamics(CFD-CSD)coupling model is established.The dynamic response and the liquefaction of the seabed around the composite bucket foundation of the offshore wind turbines in the Xiangshui area of Jiangsu Province are investigated.The pore water pressure,the effective stress,the liquefaction depth and the anti-liquefaction effect of the overlying stones are analyzed.It is shown that the seabed around the composite bucket foundation will be liquefied under 50 year return waves,the liquefaction width is approximately 1/3 of the wavelength,and the maximum liquefaction depth is approximately 1/4 of the wave height.In addition,the overlying stones provide an effective anti-liquefaction method.Thicker,less porous overlying stones have a better anti-liquefaction effect.

关 键 词：Offshore wind turbine composite bucket foundation WAVE ANTI-LIQUEFACTION overlying stones 

分 类 号：TV139.2[水利工程—水力学及河流动力学]