海上大直径单桩基础沉桩施工关键技术研究

  目的  随着我国海上风电开发的迅速发展，近海风电场常采用无过渡段大直径钢管桩结构作为风机基础，该基础形式的应用避免了有过渡段单桩的不利因素，但主要难点在于施工装备要求高、单桩垂直度控制难度大。  方法  文章以采用了大直径单桩基础的广东某海上风电工程项目为例，重点阐述了海上风电大直径无过渡段风机单桩基础沉桩的施工方法和要点。  结果  该施工方案具有高效率、高质量、低成本等特点。  结论  海上大直径单桩基础沉桩施工关键技术对相关工程具有指导借鉴意义。

Research on Key Technologies of Pile Driving Construction for Monopile

  Introduction  With the rapid development of offshore wind power in China, large diameter pile without transition piece has been widely used . This foundation avoids the disadvantage of monopile with transition piece, but result in high demand of construction equipment and the verticality is difficult to control.  Method  Taking a offshore wind power project in Guangdong as an example, the key technologies of pile driving construction for monopile without transition piece were comprehensively expounded in this paper.  Result  The construction plan of monopile driving is being proven high efficiency, safety, reliability, and cost-effectiveness.  Conclusion  Key technologie of pile driving construction for monopile has certain guiding significance for similar projects.