海上风机单桩基础选型设计方法
Design Flow of Monopile Foundation for Offshore Wind Turbine
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摘要: 海上风电资源的开发为中国可再生能源的发展提供了巨大的潜能。寻求一种经济和技术方面的最优解决方案,对基础设计和建造工艺提出了很高的要求。超大直径单桩基础具有显著优势,正被越来越多地应用于海上风电大容量机组。整机固有频率、基础水平变形以及大直径桩的可打入性等多个因素决定着单桩基础的可用性,因此,能够快速判别风电场址对于单桩基础的可用性就显得非常重要。基于广东省多个海上风电场设计实践和经验,归纳了海上风机单桩基础设计的流程和要点,可为海上风电机组桩基设计提供参考。Abstract: Offshore wind energy offers a huge potential for the expansion of renewable energies in China. High demands have to be made concerning foundation design and construction methods to find an economically and technically optimal solution. A promising foundation concept which can be more and more widely used in large capacity offshore wind turbines is the super monopile. It is important to quickly find out the availability of monopile, which is determined by factors such as the natural frequency of the turbine-foundation system, the horizontal displacement and the drivability of large-diameter steel piles.Based on the design practice and experience of some offshore wind farms in Guangdong Province, the flow chart and key points were summarized, which can be applied to the design of pile foundation offshore wind turbines.
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