Offshore wind power high-pile high-bearing platform foundation suitable for sea areas with strong stormy waves and construction method of offshore wind power high-pile high-bearing platform foundation: Fid-Bau Portal

Offshore wind power high-pile high-bearing platform foundation suitable for sea areas with strong stormy waves and construction method of offshore wind power high-pile high-bearing platform foundation

KUMANE / ZHU ZHOUJIE / ZHAN YIDE

Abstract

The invention discloses an offshore wind power high pile and high bearing platform foundation suitable for strong storm sea areas and a construction method thereof, and relates to the technical field of offshore wind power foundations, the offshore wind power high pile and high bearing platform foundation comprises a concrete bearing platform and a fan tower, the fan tower is fixedly arranged on the concrete bearing platform, and a plurality of reinforced steel pipe piles are arranged on the bottom surface of the concrete bearing platform; a prestressed bolt group is arranged on the concrete bearing platform, the upper end of the prestressed bolt group extends out of the concrete bearing platform and is connected with the fan tower drum, and the lower end of the prestressed bolt group penetrates through the concrete bearing platform and is connected with the top end of the reinforced steel pipe pile. The reinforced concrete is additionally arranged in the reinforced steel pipe piles on the lower portion of the concrete bearing platform foundation, compared with a traditional bearing platform foundation, the rigidity and strength of the lower portion of the foundation are enhanced, more small-diameter steel pipe piles can be adopted under the same condition, meanwhile, the problem that large-diameter single-pile construction is limited by large expensive imported piling equipment is effectively solved, and the construction efficiency is improved. Therefore, the device is higher in reliability during construction.

本发明公开了一种适用于强风浪海域的海上风电高桩高承台基础及其施工方法，涉及海上风电基础技术领域，包括混凝土承台与风机塔筒，所述风机塔筒固定设置在混凝土承台上，所述混凝土承台的底面设置有若干个强化型钢管桩，所述混凝土承台上设置有预应力螺栓组，所述预应力螺栓组的上端伸出混凝土承台并与风机塔筒相连接，所述预应力螺栓组的下端穿过混凝土承台并与强化型钢管桩的顶端相连接。本发明混凝土承台基础下部强化型钢管桩内增设钢筋混凝土，相较于传统承台基础，增强了基础下部的刚度与强度，并在相同条件下可更多采用小直径钢管桩，同时有效解决了大直径单桩施工受大型昂贵进口打桩设备的制约，因此装置进行施工时可靠性更高。

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