Stiffening composite suction caisson foundation with convex edges

Abstract

The invention relates to a stiffening composite suction caisson foundation with convex edges. The caisson foundation comprises a cement soil mixing pile reinforcing body and a suction caisson foundation body embedded in the cement soil mixing pile reinforcing body; the suction caisson foundation body is cylindrical, the upper end of the suction caisson foundation body is provided with a sealing cover, and the lower end of the suction caisson foundation body is provided with an opening; the sealing cover is provided with a cable guide hole and a drainage valve; the drainage valve communicates with an inner cavity of the suction caisson foundation body; the outer surface and the inner cavity of the suction caisson foundation body are provided with a plurality of outer convex edges and innerconvex edges respectively; the cross sections of the outer convex edges and the inner convex edges are each in a right triangle shape; and the inner convex edges and the outer convex edges are arranged on the inner and outer surfaces of the suction caisson foundation body in a circular ring or segmented circular ring shape. The uplift bearing capacity of the suction caisson foundation can be greatly improved, and the overall stability of a fan structure is ensured.

Description

technical field [0001] The invention relates to a rigid composite suction caisson foundation with convex edges, which belongs to the field of anchor foundations for floating offshore platforms and offshore floating wind turbines. Background technique [0002] The suction caisson foundation is a common foundation form for offshore wind power foundations and offshore platforms. Since the shallow soil is mainly composed of silt and silt, and the soil quality is relatively poor, the bearing characteristics of the suction caisson foundation are greatly affected by the shallow soil. At the same time, under the influence of wind, waves, currents and other factors under the complex marine environment, as well as the long-term uplift load, the suction caisson foundation produces large horizontal and vertical bearing capacity and displacement, threatening the safety of the superstructure. [0003] As a new type of floating offshore wind turbine foundation, the suction caisson foundat...

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Problems solved by technology

[0005] Aiming at the problem of lower pull-out bearing capacity and lower horizontal bearing capacity of the suction caisson foundation, the present invention provides a rigid composite suction caisson foundation with convex edges, which greatly improves the vertical resistance of the suction caisson foundation. Pull bearing capacity and horizontal bearing capacity

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