Offshore wind power multi-cylinder jacket foundation construction method

Abstract

The invention belongs to the technical field of offshore wind power foundations, and discloses an offshore wind power multi-cylinder jacket foundation construction method. The construction method comprises the steps that a plurality of multi-cylinder jacket foundations and a flat ship are assembled into an integrated floating body structure, and transporting, installation and recovering are carried out; and the plurality of multi-cylinder jacket foundations are distributed on the two sides of the flat ship, and the side portion of each multi-cylinder jacket foundation is welded to the flat ship. According to the offshore wind power multi-cylinder jacket foundation construction method, self-floating stability of the multi-cylinder jacket foundations is utilized, certain gas is actively stored inside suction cylinders, the multi-cylinder jacket foundations and the flat ship are welded into the integrated floating body structure, certain advantages are achieved in the foundation assembly, transportation, installation and recovery processes, the requirement for offshore equipment during construction of the multi-cylinder jacket foundations can be lowered, and the whole construction process is simple, efficient, high in construction controllability, high in precision and easy to implement.

Description

technical field [0001] The invention belongs to the technical field of offshore wind power foundations, and in particular relates to a construction method for offshore wind power multi-tube jacket foundations. Background technique [0002] The traditional offshore wind power jacket foundation is fixed to the seabed by pile foundations driven into the mud surface. After the foundation is in place, it is necessary to ensure that the foundation is inserted into the corresponding hole position. During this process, the jacket has a heavy hoisting weight, high hoisting safety requirements, and great difficulty in alignment. problem to be solved. At present, the suction cylinder jacket foundation is transported to the site by dry towing by large ships, and its nose, tower and blades often need to be transported separately by transport barge, which is highly dependent on large offshore equipment and has a long construction period. [0003] The suction cylinder type foundation is s...

AI Technical Summary

Problems solved by technology

During the construction of the traditional multi-tube jacket foundation, the crane needs to lift the entire foundation, and the requirements for lifting equipment are relatively high

However, in the installation process of the traditional multi-tube jacket foundation in water, it is relatively difficult to adjust the flatness of the foundation by a crane; For soil, the water pump usually needs to work continuously, the pressure difference between the inside and outside of the cylinder is small, and the construction speed is relatively slow

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