on April 12, with the first warehouse of concrete pumped to the T23 wind turbine foundation of Zhegu 50 MW wind power project in Shannan Cuomei County, the Three Gorges Xizang, it marks that the Cuomei wind power project constructed by Guizhou Engineering Co., Ltd. of China Power Construction Group has changed from excavation to concrete pouring in an all-round way. It has laid a solid foundation for achieving the goal of annual full capacity grid-connected power generation.
Cuomei Project is the first wind power generation project with large capacity of more than 50 MW in the world with an altitude of more than 5000 meters, with an altitude of 5065 meters and a night temperature of -15 ℃. It adopts Sany Heavy Industry 3.6M W and Yunda 3.3M W models, which are the first in terms of high altitude and single unit capacity. The foundation of 3.6MW unit produced by Sany Heavy Industry is poured in the first warehouse. The bottom radius of the foundation is 9.1m, the top radius is 3.4m, and the buried depth of the foundation is 3.55 m. The pouring volume is 450 cubic meters, which is the highest wind turbine foundation in the world at present. The concrete supply distance
of Cuomei project is 90 kilometers long, the construction is difficult, the coordination is difficult, and the resources are scarce. In order to ensure the smooth pouring of the first warehouse concrete, the project department and the construction unit have invited well-known plateau construction experts for many times to organize safety technology demonstration meetings. The concrete mix proportion, pouring quality, post-pouring curing means and concrete supply guarantee means were rigorously and scientifically demonstrated, and the concrete raw materials, mix proportion and mass concrete hydration heat calculation were tested and improved for many times, which laid a solid technical and construction resource support for the later construction of wind power.
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