Scour protection structure for open sea draught fan foundation single pile

Abstract

The invention discloses a scour protection structure for an offshore wind and power foundation single pile. The scour protection structure comprises bottom-layer sand, second-layer sand, third-layer sand, top-layer sand and a plurality of sand bags, and inner layers are arranged on the upper surfaces of the bottom-layer sand, the second-layer sand, the third-layer sand and the top-layer sand. Thebottom-layer sand is in a circular ring shape, the inner diameter of the bottom-layer sand is matched with the outer diameter of the bottom of the foundation single pile, and the outer diameter is larger than the inner diameter by 5 cm. The second-layer sand is also in a circular ring shape, the inner diameter of the second-layer sand is matched with the outer diameter of the bottom of the foundation single pile, and the outer diameter is larger than the inner diameter by 10 cm. The third-layer sand is in a rectangular shape and is formed by two pieces of small rectangular sand, wherein each of the middle portions of the opposite sides of the two pieces of small rectangular sand is provided with a kidney-shaped notch, and a circular hole is formed in the center after the two pieces of small rectangular sand are encircled to the bottom of the foundation single pile. The top-layer sand and the second-layer sand are the same in shape and specification. The sand bags are thrown to the top-layer sand in a filling manner along the foundation single pile. According to the scour protection structure, stability of the seabed around the foundation single pile can be better protected.

Description

technical field [0001] The invention relates to an erosion protection structure of a single pile of an offshore fan foundation. Background technique [0002] Offshore wind power is a highly technically complex field, and the complexity of the offshore wind power environment further increases its technical difficulty. In terms of its environment, the environmental impact factors of offshore wind power mainly refer to meteorological and hydrological conditions such as wind, waves, and currents. After the wind farm is completed, hydrodynamic effects such as waves and currents will cause severe local erosion of the single pile of the wind turbine foundation, thereby affecting the stability of the single pile of the wind turbine foundation. In order to improve the anti-scouring capability of offshore wind farms and improve their structural stability, it is necessary to carry out anti-scouring protection treatment for offshore wind farms. [0003] The common anti-scouring protec...

AI Technical Summary

Problems solved by technology

In addition, due to the uncertainty of local erosion, the thickness and shape of the anti-scour material laid are unpredictable, which is usually quite different from the simulation calculation carried out before construction, resulting in the uncontrollable actual force of the single pipe pile, which affects the wind turbine. support stability

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