Bionic wave vortex breaking structure and construction method thereof

Abstract

The invention discloses a bionic wave vortex breaking structure. The bionic wave vortex breaking structure comprises a plurality of wave single structures; the multiple wave single structures are alternately arranged and distributed in the circumferential direction of the peripheral outer wall of the target protection structure; the upper edge of the wave single body structure at the top of each wave single body structure is fixedly connected with the upper edge of the target protection structure; the lower edge of the wave single body structure at the bottom of each wave single body structure is fixedly connected with the lower edge of the target protection structure; each wave single body structure comprises a plurality of wave single body units, and the plurality of wave single body units are distributed in the axial direction of the target protection structure; the edges of the two sides of each wave single body structure are distributed on the outer side wall of the target protection structure in a sine curve shape. The invention further discloses a construction method of the bionic wave vortex breaking structure. By means of the bionic wave vortex breaking mode, the vortex-induced vibration phenomenon and the local scouring depth of the foundation structure can be reduced, and the reliability and adaptability of the foundation structure in the severe ocean environment are improved.

Description

technical field [0001] The invention relates to the technical field of offshore wind power, in particular to a bionic wave vortex breaking structure and a construction method thereof. Background technique [0002] With the continuous expansion of the number of wind turbine assembly units and the continuous increase of the capacity of a single unit, the water depth applicable to the structure of offshore wind power is gradually shifting from the offshore shallow water area to the far sea deep water area. higher requirements. [0003] Regardless of whether it is a pile foundation and a cylindrical foundation suitable for shallow water, or a jacket foundation and floating foundation suitable for medium and high water depths, the foundation structure itself or its auxiliary structure (mooring cable) will be affected by the marine hydrodynamic environment. eddy currents are generated. When the Reynolds number reaches a certain value, antisymmetric Karman vortex streets appear o...

AI Technical Summary

Problems solved by technology

When the natural vibration frequency of the basic structure and its subsidiary structures in the fluid is close to the frequency of the lateral acting pressure, severe resonance phenomena will occur, resulting in vortex-induced vibration, resulting in reduced fatigue life and structural damage, and ultimately endangering the safety of the entire project

[0004] In addition, the vortex is also an important factor for local scouring of the sediment near the bed surface. When the start-up velocity generated by the vortex is greater than the start-up velocity of the sediment near the street, the sediment particles on the seabed will be formed under the action of various vortex forms. Suspension, shifting and partial settlement will eventually hollow out the seabed to form scour pits, thereby reducing the overall bearing capacity of the foundation, causing the structure to topple, skew and fail.

[0005] At present, the research on vortex breaking and shock absorption facilities is still concentrated on land structures such as land bridge slings and fan towers. The problem of eddy scour

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