Suction caisson foundation with grouting device on side wall

Abstract

The invention discloses a suction caisson foundation with a grouting device on the side wall. The suction caisson foundation with the grouting device on the side wall comprises a negative pressure cylinder, wherein an opening is formed in the lower end of the negative pressure cylinder, a sealing cover is arranged at the upper end of the negative pressure cylinder, the sealing cover is provided with a cable guide hole, a drainage valve and a lead hole, and the drainage valve and the lead hole communicate with the inner cavity of the negative pressure cylinder; circular ring type grouting pipelines are arranged on the peripheries of the inner wall and the outer wall of the negative pressure cylinder, the circular ring type grouting pipeline are arranged in a layered mode and are mutually independent, the inner wall circular ring type grouting pipelines are connected through inner wall vertical connecting pipes, the upper parts of the inner wall vertical connecting pipes penetrate through the lead hole and are connected with the grouting device; the outer wall circular ring type grouting pipelines are connected through an outer wall vertical connecting pipe; and the inner wall vertical connecting pipes are not provided with grouting holes, the plurality of grouting holes are formed in the circular ring type grouting pipelines, and the grouting pipelines are made of steel and are firmly welded with the inner wall and the outer wall of a negative pressure cylinder body. According to the suction caisson foundation, grouting is carried out on the inner wall and the outer wall of the negative pressure cylinder body, so that the friction resistance between the negative pressure cylinder and soil is increased, and the vertical uplift bearing capacity of the suction caisson foundation is improved.

Description

technical field [0001] The invention relates to the technical field of anchoring of floating offshore wind turbines, in particular to a suction caisson foundation with a grouting device on the side wall. Background technique [0002] Most of the global offshore wind power is within a range of less than 50m. The development of resources in the deep sea is in the exploratory stage. The application of traditional fixed wind turbines to wind power in the deep sea will inevitably cause disadvantages such as high cost and difficult construction. Therefore, replacing traditional fixed wind turbines with floating offshore wind turbines has become the direction of future wind power development. [0003] As a new type of floating offshore wind turbine foundation, the suction caisson foundation meets the needs of wind turbine construction in the deep sea field. This type of foundation form has the characteristics of large bearing capacity, low cost, simple structure, and short constru...

AI Technical Summary

Problems solved by technology

[0002] Most of the global offshore wind power is within a range of less than 50m. The development of resources in the deep sea is in the exploratory stage. The application of traditional fixed wind turbines to wind power in the deep sea will inevitably cause disadvantages such as high cost and difficult construction.

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