Pile periphery scouring protection device and method for offshore wind power single pile foundation

Abstract

According to a pile periphery scouring protection device and method for an offshore wind power single pile foundation, a protection shell of an annular curved surface body structure is annularly arranged on the outer side of the to-be-protected single pile foundation, the lower end of the protection shell makes contact with and is fixed to a seabed, and a stable protection structure is formed on the outer side of the to-be-protected single pile foundation, the generation of pile periphery vortex can be effectively reduced, the extreme flow velocity of pile periphery water flow is further reduced, stone is prevented from colliding with the single-pile foundation when the stones are thrown and filled at a closer position, powerful protection for the single-pile foundation is formed. The section of the protection shell along the axis of the protection shell is of a hyperbolic curve structure, throwing and filling stone is arranged on the outer side of the protective shell, the stone is effectively utilized to form pressure on the outer side of the curved surface of the protection shell, the protection shell is pressed on the seabed, and loosening caused by disturbance of seawater is prevented; and meanwhile, the upper end of the protection shell is located below the sea level, so that the protection shell is prevented from being scoured by the sea level, and the situation that the protection shell is unstable due to the fact that the protective shell is too high is avoided.

Description

technical field [0001] The invention belongs to the technical field of offshore wind power engineering, and in particular relates to a protection device and method for protection against scour around a single pile foundation of offshore wind power. Background technique [0002] In the field of offshore wind power engineering technology, large-diameter monopile foundations are widely used in offshore wind power projects because of their simple structure, convenient fabrication, and high construction efficiency. During the operation of the single pile foundation, it needs to withstand environmental factors such as waves and currents. When the ocean current flows through the single pile foundation, a vortex structure will be formed around the single pile foundation, and the vortex will take away the seabed soil around the single pile foundation, and then form a scour pit around the single pile foundation. The existence of the scour pit will directly affect the bearing capacity...

AI Technical Summary

Problems solved by technology

However, when throwing stone material at a position close to the single pile foundation, collisions between the stone material and the single pile foundation often occur, causing damage to the single pile foundation, etc.

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