Inclined type barrel-shaped foundation mooring system and construction method thereof

Abstract

The invention discloses an inclined type barrel-shaped foundation mooring system and a construction method thereof. The inclined type barrel-shaped foundation mooring system comprises structures floating on the sea, buoys, anchor chains, a foundation ring, an inclined type barrel-shaped foundation, water drainage pipes, anchor bolts and steel wing plates. The inclined type barrel-shaped foundation is embedded in a seabed in a suction force sinking and penetrating manner. The steel wing plates and the anchor bolts are symmetrically welded to the side walls of the inclined type barrel-shaped foundation. The foundation ring used for hoisting the foundation is welded in the middle of a top cover of the inclined type barrel-shaped foundation. The two water drainage pipes with switches are arranged on the two sides of the foundation ring. The lower portions of the anchor chains are connected with the anchor bolts. The buoys are arranged on the upper portions of the anchor chains and connected with the structures floating on the sea. When upwards-pulled loads are borne by the inclined type barrel-shaped foundation, the uplift bearing capacity can be improved by fully utilizing the dead weight of the side walls of the inclined type barrel-shaped foundation, the dead weight of soil bodies on the upper portions of the steel wing plates and the friction force of the foundation and the soil bodies. One or more structures floating on the sea can be fixed; and when the upwards-pulled loads are borne by the anchor bolts on the upper portion and the lower portion of the inclined type barrel-shaped foundation, the dead weight of the steel wing plates and the soil bodies on the upper portion of the foundation can effectively resist the rotation torque generated by the inclined type barrel-shaped foundation at the moment.

Description

technical field [0001] The invention belongs to the technical field of fixing and mooring of floating structures in marine engineering, and in particular relates to a mooring system of an inclined barrel-shaped foundation. Background technique [0002] In recent decades, with the sharp increase in society's demand for oil resources and the increasing scarcity of land energy resources, people's focus on energy development has shifted from land to sea, and the development of marine energy resources has become increasingly prosperous. According to the forecast of the World Energy Council, by 2020 the world's offshore wind power installed capacity will increase by 10% compared with 2013. However, due to the impact of water depth on foundation construction cost and construction difficulty, offshore wind power monopile foundations and gravity foundations are suitable for shallow seas with water depths not exceeding 30 m. When the depth exceeds 80 m, it is more economical to choose...

AI Technical Summary

Problems solved by technology

Although these two methods can increase the uplift bearing capacity of the foundation to a certain extent and provide fixation for offshore floating structures, but at the same time as increasing the size and quantity of the foundation, it will inevitably increase the cost and construction difficulty of the foundation

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