海上风电嵌岩区风机基础比选原则及依据

Principles and Basis of Wind Turbine Foundation Selection in Rock-socketed Area of Offshore Wind Power Engineering

[目的]随着海上风能的开发中心从江苏扩大至广东、福建等省份,海上风机基础的嵌岩问题已逐步成为海上风能开发中的核心问题,嵌岩区的风机基础造价严重制约着海上风电场的成本,因此海上风电嵌岩区的风机基础比选就显得尤为关键。[方法]讨论了几种风机基础的嵌岩施工工艺,探讨了嵌岩区海上风机基础的比选依据及原则,并对海上风电嵌岩问题的发展进行展望。[结果]研究表明:海上风电场嵌岩区域风机基础方案的比选原则应主要从结构安全性、施工可行性和经济性三个方面进行综合比选。在上述三个比选因素中,应首先满足结构安全性上的要求,在此基础上再满足施工可行性的要求,最后考虑经济性的影响。[结论]研究成果可为嵌岩区海上风电风机基础设计提供参考。

[Introduction]With the expansion of offshore wind energy development center from Jiangsu to Guangdong,Fujian and other provinces,the rock-socketed problem of offshore wind turbine foundation has gradually become the core issue in offshore wind energy development.The cost of wind turbine foundation in rock-socketed area severely restricts the cost of offshore wind farm,so the selection of wind turbine foundation in rock-socketed area is particularly critical.[Method]This paper first discussed the rock-socketed construction technology of several wind turbine foundations,then discussed the selection basis and principles of offshore wind turbine foundations in rock-socketed areas,and finally prospected the development of offshore wind power rock-socketed problems.[Results]The study shows that the selection principle of wind turbine foundation scheme in rock-socketed area of offshore wind farm should be comprehensively compared from three aspects:structural safety,construction feasibility and economy.Among the three factors mentioned above,the requirements of structural safety should be satisfied first,the requirements of construction feasibility should be satisfied on this basis,and the influence of economy should be considered at last.[Conclusion]The research results can provide reference for offshore wind turbine foundation design in rock socketed area.