海上风力发电机桩基防冲刷结构

本实用新型属于海洋工程技术领域，涉及一种海上风力发电机桩基防冲刷结构，包括桩基、夹套及多个风机叶片，所述桩基固定在海底，所述夹套套设在所述桩基的底端的外周上，所述夹套的周壁上设置有多个定位孔，多个所述风机叶片的根部插接固定在对应的所述定位孔中，所述风机叶片的底部与海床面接触，多个风机叶片环绕夹套在圆周上间隔排布。本申请的海上风力发电机桩基防冲刷结构，通过设置多个风机叶片可以达到扰动流动边界层的效果，使得海床面底部动能增大，上下流体速度差减小、动能差减小，进而降低马蹄涡强度，最终达到避免桩基周围冲刷坑形成的目的。不需要投入太多人力物力，仅使用夹套和多个风机叶片。

The utility model belongs to the technical field of ocean engineering, and relates to a pile foundation anti-scouring structure of an offshore wind turbine, which comprises a pile foundation, a jacket and a plurality of fan blades, the pile foundation is fixed on the seabed, the jacket is sleeved on the periphery of the bottom end of the pile foundation, a plurality of positioning holes are arranged on the peripheral wall of the jacket, and the fan blades are arranged on the jacket. The roots of the multiple fan blades are fixedly inserted into the corresponding positioning holes, the bottoms of the fan blades make contact with the seabed surface, and the multiple fan blades are arranged on the circumference at intervals around the clamping sleeve. According to the anti-scour structure for the pile foundation of the offshore wind turbine, the effect of disturbing the flowing boundary layer can be achieved by arranging the multiple fan blades, kinetic energy of the bottom of the seabed surface is increased, the velocity difference of upper and lower fluid is reduced, the kinetic energy difference is reduced, then the horseshoe vortex strength is reduced, and finally the purpose of avoiding formation of scour pits around the pile foundation is achieved. Too much manpower and material resources do not need to be invested, and only the jacket and the multiple fan blades are used.