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Offshore wind turbine pile foundation anti-scouring structure and method
The invention belongs to the technical field of ocean engineering, and relates to an offshore wind turbine pile foundation anti-scouring structure and method. The offshore wind turbine pile foundationanti-scouring structure comprises a pile foundation, a jacket and a plurality of fan blades, wherein the pile foundation is fixed to the seabed, the jacket is arranged on the periphery of the bottomend of the pile foundation in a sleeving mode, a plurality of positioning holes are formed in the peripheral wall of the jacket, the roots of the plurality of fan blades are inserted and fixed in thecorresponding positioning holes, the bottoms of the fan blades are in contact with the seabed surface, and the plurality of fan blades are arranged at intervals on the circumference around the jacket.According to the offshore wind turbine pile foundation anti-scouring structure, the effect of disturbing the flowing boundary layer can be achieved by arranging the plurality of fan blades, so that the kinetic energy of the bottom of the seabed surface is increased, the speed difference between the upper fluid and the lower fluid is reduced, the kinetic energy difference is reduced, then the strength of the horseshoe vortex is reduced, and finally the purpose of avoiding the formation of scouring pits around the pile foundation is achieved. Too much manpower and material resources do not needto be input, and only the jacket and the plurality of fan blades are used.
本发明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及方法，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，多个风机叶片环绕所述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。
Offshore wind turbine pile foundation anti-scouring structure and method
The invention belongs to the technical field of ocean engineering, and relates to an offshore wind turbine pile foundation anti-scouring structure and method. The offshore wind turbine pile foundationanti-scouring structure comprises a pile foundation, a jacket and a plurality of fan blades, wherein the pile foundation is fixed to the seabed, the jacket is arranged on the periphery of the bottomend of the pile foundation in a sleeving mode, a plurality of positioning holes are formed in the peripheral wall of the jacket, the roots of the plurality of fan blades are inserted and fixed in thecorresponding positioning holes, the bottoms of the fan blades are in contact with the seabed surface, and the plurality of fan blades are arranged at intervals on the circumference around the jacket.According to the offshore wind turbine pile foundation anti-scouring structure, the effect of disturbing the flowing boundary layer can be achieved by arranging the plurality of fan blades, so that the kinetic energy of the bottom of the seabed surface is increased, the speed difference between the upper fluid and the lower fluid is reduced, the kinetic energy difference is reduced, then the strength of the horseshoe vortex is reduced, and finally the purpose of avoiding the formation of scouring pits around the pile foundation is achieved. Too much manpower and material resources do not needto be input, and only the jacket and the plurality of fan blades are used.
本发明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及方法，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，多个风机叶片环绕所述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。
Offshore wind turbine pile foundation anti-scouring structure and method
海上风力发电机桩基防冲刷结构及方法
CAO RENJING (author) / LIU ZHOUMING (author)
2021-03-30
Patent
Electronic Resource
Chinese
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