At-sea wind generation unit foundation formed by barrel type foundation and mooring rope anchor

Abstract

The invention relates to an at-sea wind generation unit foundation formed by a barrel type foundation and a mooring rope anchor, which is composed of the barrel type foundation, a connection tower barrel, a cable rope and a suction anchor, the barrel type foundation is a steel cylinder structure which is provided with a sealing top cover, the connection tower barrel is a steel conical cylinder shape structure, the connection tower barrel and the barrel type foundation are fixed by welding and are reinforced by a rib plate, and the connection tower barrel and a connection tower barrel tower barrel are fixedly connected by a flange, and two ends of the cable rope are respectively fixed with the connection tower barrel and the suction anchor by welding. The at-sea wind generation unit foundation has the advantages that: the structure is simple, the construction is convenient, the work amount is low and the structure stress is rational. The barrel type foundation of the foundation self-floats to the construction position at sea by traction, the transportation cost can be reduced; a large hoisting ship does not need to be placed at seabed or pile driving construction at sea is not needed, the barrel type foundation can be recycled, thereby being environmental-protection; the load of the foundation structure, especially for moment load, can be effectively dispersed by the suction anchor, so as to improve the antidumping capacity of the single barrel type foundation.

Description

technical field [0001] The invention relates to the foundation structure of an offshore wind turbine, in particular to a foundation foundation for an offshore wind turbine composed of a cylindrical foundation and a mooring cable anchor. Background technique [0002] At present, the structural types of foundation foundations for offshore wind turbines are usually single pile foundations, multi-pile foundations or gravity foundations. The gravity foundation is generally a reinforced concrete structure or a mixed structure of reinforced concrete and ballast, which has high requirements on the load-bearing foundation, and also involves complex offshore construction, which is greatly affected by the climate and has high costs. The single-pile and multi-pile foundations are pile-driven supporting piles, which require special anti-corrosion, strength and toughness requirements, and expensive offshore piling equipment is required during construction, which leads to an increase in th...

AI Technical Summary

Problems solved by technology

The gravity foundation is generally a reinforced concrete structure or a mixed structure of reinforced concrete and ballast, which has high requirements for the load-bearing foundation, and also involves complex offshore construction, which is greatly affected by the climate and the cost is high

The single-pile and multi-pile foundations are pile-driven supporting piles, which require special anti-corrosion, strength and toughness requirements, and expensive offshore piling equipment is required during construction, which leads to an increase in the foundation cost of offshore wind turbines

[0003] Using the above traditional offshore wind turbine foundation structure, its foundation construction and offshore construction costs are high, resulting in a substantial increase in the investment cost of the offshore wind turbine foundation foundation compared with the land foundation, thus limiting the development of offshore wind power

For the cylindrical foundation, at present, all-steel cylindrical foundations have been adopted in foreign countries, and the structural types adopted include single-tube and multi-tube types, but no combination of cylindrical foundation and mooring cable anchors has been adopted.

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