海上风电, 导管架, 立式建造, 吊装

The offshore wind turbine jacket is relatively small and needs to be built in batches, therefore, it mostly adopts vertical construction process. However, due to the particularity of this type of jacket structure, offshore wind turbine jacket will faces a lot of hard lifting operations during its vertical construction process. Currently, there is no relevant lifting experience and engineering case for reference. Hereto, this paper based on a 2000T class large offshore wind turbine jacket project, introduced the general assembly process of this jacket, analyzed the technical difficulties of its assembly in different process, provides a lifting method for TP and upper jacket integrated lifting and lower jacket turn over lifting. Practice has proved that the method can effectively solve a series of lifting problems, such as difficult arrangement of lifting points, high difficulty of assembly and high requires of crane performance. This paper could help realize the batch construction of offshore wind turbine jacket and provide technical support for other similar projects.

offshore wind turbine, jacket, vertical construction, lifting