海上风电深水测风塔基础设计施工技术研究

Research on Foundation Design and Construction Technology of Offshore Wind Power Deep-Water Wind Measuring Tower

广东阳江青州三海上风电场,处于南海近海深水海域,具有离岸距离50 m、水深40 m以上、施工窗口期短、不连续,施工环境恶劣等特点,为获得该风场风能资源数据,在该海域设计建造了一座自立型测风塔。粤西近海深水海域结构物缺乏成熟的设计和施工经验,技术难度极大,通过分析海域施工条件,多方案论证对比,项目团队创新思维,基础结构由传统“穿靴子”变更为“戴帽子”,深水基础确定为高桩桁架方案,实现打桩快速化,桁架结构安装便利化,缩短窗口期,提高了施工功效。项目创新为海上风电场开发建设积累了实践经验,也为深水测风塔施工提供了一定的参考。

The third offshore wind farm in Qingzhou,Yangjiang,Guangdong Province is located in the deep-water offshore area of the South China Sea.It has the characteristics of 50 m offshore distance,more than 40 m water depth,short construction window period,discontinuity and poor construction environment.In order to obtain the wind energy resource data of the wind farm,a self-supporting wind measuring tower has been designed and built in the sea area.Due to the lack of mature design and construction experience of structures in the offshore deep-water area of western Guangdong,the technical difficulty is great.Through the analysis of sea area construction conditions,multi-scheme demonstration and comparison,and the innovative thinking of the project team,the basic structure is changed from“wearing boots”to“wearing hats”.The deep-water foundation is determined as the high pile truss scheme,so as to realize the rapidity of piling and the convenience of truss structure installation,shorten the window period and improve the construction efficiency.The project innovation has accumulated practical experience for the development and construction of offshore wind farms,and also provided a certain reference for the construction of deep-water wind measuring tower.