The invention relates to a large diameter single pile foundation of offshore wind turbine and a construction method thereof. The purpose of the invention is to provide a simple structure of large diameter pile foundation of offshore wind turbines and its construction method, in order to improve the utilization for near surface layer soil pile soil resistance rate, improve the level of large diameter single pile bearing capacity, improve the overall stability of foundation structure. The technical scheme of the invention is: Sea large diameter fan single pile, including the pile, which is characterized in that the outer sleeve of a cylindrical pile with a penetration structure on the seabed; the cylindrical structure comprises a circular top sealing plate, and the round top sealing plate is respectively connected to the in the skirt and the outer skirt, the inner and outer skirt skirt are located below the top sealing plate, and the two axis and perpendicular to the plane of the top closure plate, wherein the top sealing plate is provided with a vent hole. The invention is suitable for offshore wind power generation industry.
【技术实现步骤摘要】
【技术保护点】
一种海上风机大直径单桩基础，包括基桩（1），其特征在于：所述基桩（1）外同轴套有一沉贯于海床上的筒形结构（2）；所述筒形结构（2）包括一圆环形顶封板（2?1），该顶封板的内外圆上分别连接有内筒裙（2?2）和外筒裙（2?3），所述内筒裙（2?2）和外筒裙（2?3）均位于顶封板（2?1）下方，且两者轴线重合并垂直于顶封板（2?1）所在平面，形成上端封闭、下端敞口的结构，所述顶封板（2?1）上开设有通气孔（2?4）。
【技术特征摘要】
【专利技术属性】
技术研发人员：李炜，周永，赵生校，王淡善，
申请(专利权)人：中国水电顾问集团华东勘测设计研究院，
类型：发明
国别省市：
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