Single pile and gravity combined offshore wind power foundation

Abstract

The invention discloses a single pile and gravity combined offshore wind plant blower foundation. The foundation comprises a steel pipe pile vertically inserted to a seabed; the upper end of the steel pipe pile is connected with a transition section, and the upper end of the transition section is connected with a blower tower cylinder; the lower end of the steel pipe pile is anchored on the seabed by crossing through a gravity type foundation. The technical scheme of the single pile-gravity combined offshore wind plant blower foundation provides a novel foundation model formed by combining a single pile and the gravity; through adding an additional hollow gravity type foundation at the position of the steel pipe pile closing to the seabed, the rigidity of the single pile foundation closing to the seabed face is enhanced, advantages of two foundations are combined, and the using scale of a single-pile foundation is enlarged. The scheme increases the ability of resisting bending torque of the single-pile foundation, reduces the displacement of the pile body, and decreases the diameter and the thickness of the steel pipe pile.

Description

technical field [0001] The invention relates to an offshore wind power foundation, in particular to a single pile-gravity combined offshore wind power foundation. Background technique [0002] The current energy crisis is becoming more and more serious. As the main energy sources, coal and oil not only have limited resources, but also cause relatively serious pollution to the environment. my country has a long coastline and abundant offshore wind energy resources. Offshore wind farms have the advantages of high wind speed, long effective power generation time, no land occupation, and close distance from load centers, etc., and have good prospects for development. The offshore environment is complex and changeable, and the safety, economy and adaptability of the infrastructure are the key factors restricting the development of offshore wind power. [0003] The structural types of wind turbine foundations in offshore wind farms can be divided into gravity foundations, si...

AI Technical Summary

Problems solved by technology

Its disadvantages are: seabed preparation is required in advance, and the offshore construction period is long; due to its large size and weight, it is inconvenient to install and the transportation cost is high; the applicable water depth range is small, and its economical efficiency increases with the increase of water depth. Not only is it not reflected, but the cost is higher than other types of foundations

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