东海大桥海上风电场风机地基基础特性及设计

Structure characteristics and design technique keys of wind turbine foundation in Shanghai Donghai-bridge offshore wind farm

东海大桥海上风电场是亚洲第一座大型海上风电场,其风机基础同时具有海洋结构工程、高耸结构基础、动力设备基础和复杂软土地基基础四种显著工程特性,地基基础设计成为该工程的关键技术难题之一。介绍了该工程风机地基基础设计内容,重点分析了海上风机地基基础特点及海上风机基础与地基非线性动力相互作用、风机—塔架—地基—基础系统动力模拟分析、基础结构疲劳分析等设计技术关键。

Shanghai Donghai-bridge off-shore wind farm is the first large scale off-shore wind farm in Asia. The wind turbine foundation of this project possess engineering characteristics of off-shore structure, high rising structure foundation, dynamic equipment foundation and complicated soft soil foundation, Thus foundation design is the most important technique keys. In this paper wind turbine foundation design is mentioned and characteristics of foundation and any technique keys including nonlinear dynamic interaction between soil and foundation, system frequency analysis and foundation fatigue analysis are emphatically introduced.