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.
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