Passive antiscour base of basic structure of gravity-type offshore wind turbine

Abstract

A passive antiscour base of basic structure of a gravity-type offshore wind turbine relates to a basic structure of an offshore wind turbine, which comprises a disc-shaped reinforced concrete base (3), a shirt rim (4) vertically arranged along the circumference of the reinforced concrete base (3), a plurality of ribbed slabs (5) uniformly and radially arranged on the bottom surface of the reinforced concrete base (3), and a grout hole (6) and an anchor rod hole (7) arranged on the reinforced concrete base (3) between two adjacent ribbed slabs (5). The passive antiscour base of basic structure of the gravity-type offshore wind turbine has the advantages of reinforcing the antiscour capability, antiskid capability and resistance to capsizing of the gravity-type basic structure, thus ensuring the gravity-type basic structure to be applicable to soft-ground seabed and scouring seabed.

Description

Technical field [0001] The invention relates to the basic structure of an offshore wind turbine, in particular to a passive anti-scouring base of the basic structure of a gravity offshore wind turbine. Background technique [0002] Offshore wind power is a clean and renewable energy source that has attracted worldwide attention. At present, dozens of offshore wind farms have been successfully constructed in Europe and North America. The key issue in the construction of offshore wind farms is the cost of power generation, and the main factor that causes the cost of offshore wind power to be higher than that of onshore wind power is the cost of infrastructure. The cost of onshore wind turbine infrastructure only accounts for 3 to 5% of the total investment, while the cost of offshore wind turbine infrastructure accounts for 14 to 16% of the total investment. Therefore, reducing the cost of offshore wind turbine infrastructure is the key to developing offshore wind energy. [0003] ...

AI Technical Summary

Problems solved by technology

[0004] 1. It has no anti-scouring ability and is only suitable for non-scouring sea areas;

[0005] 2. It does not have anti-slip ability, and is only suitable for sea areas with hard seabed;

[0006] 3. The anti-overturning ability mainly depends on the weight of the structure itself, so it is not suitable for large megawatt wind turbines

Compared with the gravity structure, the cost of the single pile structure is higher, and the offshore construction period is longer

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