Offshore wind power damping energy dissipation single pile foundation and construction method thereof

Abstract

The invention provides an offshore wind power damping energy dissipation single pile foundation and a construction method thereof. The offshore wind power damping energy dissipation single pile foundation comprises a single pile foundation body, and the single pile foundation body comprises an insertion section inserted into an ocean soil body; the shock absorption and energy dissipation device comprises a cylindrical shell, a plurality of elastic components are arranged on the inner wall of the cylindrical shell, the elastic components are axially distributed along the cylindrical shell, each elastic component is annularly distributed along the cross section of the cylindrical shell, one end of each elastic component is connected with the inner wall of the cylindrical shell, and the other end of each elastic component is in contact with the outer wall of the insertion section. The elastic part can elastically deform in the radial direction of the cylindrical shell. A damping part inserted into the upper end of the cylindrical shell is arranged in the cylindrical shell, so that the upper end of the cylindrical shell is closed. The elastic component and the damping component are fully utilized for shock absorption and energy dissipation, the stress of the body inserted into the soil body section is optimized, the stress is more reasonable, the body is protected, the body is prevented from directly acting with the ocean soil body, the body is prevented from being separated from the soil body, and meanwhile ocean current scouring is slowed down.

Description

technical field [0001] The invention relates to the field of offshore wind power, in particular to an offshore wind resistance damping energy-dissipating single pile foundation and a construction method. Background technique [0002] Offshore wind energy has the advantages of rich resources, stable wind speed, little negative impact on the environment, large installed capacity, and does not occupy arable land. It is one of the new energy sources that countries focus on developing. Vigorously develop offshore wind power generation to provide renewable power generation for the national grid, thereby saving a large amount of fossil energy for the country, and at the same time reducing the emission of a large number of harmful substances and carbon dioxide, reducing environmental pollution and the greenhouse effect. [0003] Offshore wind power foundations support the upper structure, and at the same time bear strong wind loads, seawater corrosion and wave impact. Compared with ...

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Problems solved by technology

[0006] However, the above-mentioned patent 201310420301.5 has the following disadvantages: (1) The main structure is a balanced water tank, and the height of the water body needs to be adjusted according to the waves and currents to exert a good damping effect

However, the actual ocean hydrodynamic environment is extremely complex and constantly changing, and the waves and tidal phenomena are irregular. In practical applications, it is difficult to ensure that the balance tank is accurately located in the main excitation area of ​​waves and tidal currents, and the vibration reduction effect is difficult to achieve the expected effect; (2) The head is short and the tail is short. The long airfoil wall is difficult to process, and it also increases the difficulty of installation

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