Assembled offshore wind power pile foundation scouring protection device and installation method thereof

Abstract

The invention discloses an assembled offshore wind power pile foundation scouring protection device. The device is provided with a center protection cylinder surrounding the periphery of a single pile foundation and a skirt plate arranged on the outer side of the center protection cylinder in a sleeving manner, wherein the longitudinal section of the skirt plate is a downwards-concave arc face; a protection pad is arranged on the inner side of the center protection cylinder; the skirt plate and the upper end of the center protection cylinder are fixed, and the lower end of the center protection cylinder is connected with the skirt plate through an annular bottom plate; radial partition plates and circumferential partition plates are arranged in an energy dissipation cavity formed by the annular bottom plate, the skirt plate and the center protection cylinder; energy dissipation holes are formed in the circumferential partition plates, the radial partition plates and the skirt plate; and energy dissipation blocks are fixed to the skirt plate. The device is formed by splicing at least two assembling units equally divided in the circumferential direction; the assembling units are of a steel-concrete structure; the two sides of each assembling unit are each provided with one radial partition plate; and hanging rings are arranged on the assembling units. The invention further discloses an installation method of the device. By means of the assembled offshore wind power pile foundation scouring protection device and the installation method thereof, soil around the offshore wind power foundation can be effectively protected and prevented from being scoured, installation is easy and convenient, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the field of marine engineering, in particular to an assembled offshore wind power pile foundation scour protection device and an installation method thereof. Background technique [0002] As a clean renewable energy, wind energy has a very broad application prospect. After decades of development, the application and development of onshore wind energy and offshore wind energy have made remarkable achievements. Among them, offshore wind power has its unique advantages. Building wind farms on the sea can take advantage of the vast space and wind resources on the sea to achieve large-scale benefits and reduce the cost of wind power generation. Offshore wind power foundation structures include single pile foundation, high pile cap foundation, jacket foundation, tripod foundation, cylindrical foundation and floating foundation, among which the single pile foundation is the most widely used foundation form due to its simple structu...

AI Technical Summary

Problems solved by technology

The first type is the traditional riprap structure, which is simple to construct, but the anti-scour effect is often poor due to poor riprap gradation; the second type is sand quilts and sand bags, which have poor durability ; The third is silt solidification, which achieves the purpose of anti-scouring by changing the properties of silt, but this method will kill benthic organisms and damage the environment, and its durability is yet to be tested by engineering

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