Sand filling bag for scour prevention and ballasting of deep sea wind-driven generator foundation protection

Abstract

The invention provides a sand filling bag for scour prevention and ballasting of deep sea wind-driven generator foundation protection, and particularly relates to the technical field of ocean engineering and marine new energy engineering. The sand filling bag comprises a wind-driven generator foundation structure, wherein the bottom of the wind-driven generator foundation structure is located on the seabed surface; the end of the wind-driven generator foundation structure is exposed out of the sea level; the wind-driven generator foundation structure comprises a plurality of annularly-arrangedfoundation piles; the foundation piles are sequentially connected in series; a main rod is arranged on the foundation piles; supporting rods are connected through reinforcing ribs; a supporting structure is arranged on the peripheries of the foundation piles, a plurality of ballasting sand bags are arranged at the upper ends of the foundation piles, and a plurality of sand filling bags are arranged on the supporting structure; the main rod is a hollow pipe, a plurality of sand filling branch pipes are arranged at the lower end of the main rod, and the main rod and the sand filling bags communicate through the sand filling branch pipes; and a sand filling pipe is arranged at the upper end of the main rod, the main rod and a slurry pump are connected through the sand filling pipe, and the slurry pump is arranged on a sand filling ship. By means of the sand filling bag, the sand filling bags can be rapidly and accurately installed in place, and filling construction is achieved.

Description

technical field [0001] The invention belongs to the technical field of marine engineering and marine new energy engineering, and in particular relates to a sandbag used for foundation protection, anti-scouring and ballasting of deep-sea wind turbines. Background technique [0002] The foundation of deep-sea offshore wind power is the supporting structure of the wind turbine, and the stability of the foundation has an important impact on the structural safety and operation of the offshore wind turbine. As the water depth increases, affected by ocean currents and tides, the soil around the foundation structure is affected by turbulence, and foundation scour is prone to occur, thus affecting the safety of the foundation structure. [0003] In the partial gravity foundation structure, in order to improve the stability of the foundation and solve the problems of the foundation's resistance to uplift and overturning, it is necessary to ballast the foundation to increase its own we...

AI Technical Summary

Problems solved by technology

In order to solve the problem of anti-scouring and ballasting of offshore wind power foundations, the traditional technology is to use riprap protection or make sandbags, sand quilts and other protective structures; The cost of riprap protection has increased significantly, and traditional sandbags and sand quilts cannot be installed accurately due to the increase in water depth

Therefore, in deep water or sea areas with high flow velocity, the anti-scouring and ballasting construction of offshore wind power infrastructure is costly and difficult;

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