en.Wedoany.com Reported - On June 9, the No. 1 water diversion steel bifurcation pipe of the Songyang Pumped Storage Power Station in Zhejiang was successfully installed, marking the entry of the station's water diversion system into the peak period of penstock installation, thereby creating conditions for subsequent branch pipe and powerhouse electromechanical equipment installation.

The No. 1 water diversion steel bifurcation pipe, which was installed this time, adopts a symmetrical "Y"-shaped crescent rib structure, manufactured from 800 MPa grade high-strength steel for hydropower. The main pipe has an inner diameter of 5.0 meters, the branch pipes have an inner diameter of 3.5 meters, and the single section weighs 55.6 tons, serving as a core component of the station's water diversion system. The Songyang Pumped Storage Company of China Three Gorges Construction Engineering Corporation led all participating units to refine construction deployment in advance, strictly review special plans for transportation and hoisting, and comprehensively investigate construction risks. The project team successfully completed technical procedures including hoisting of super-large and high-risk components, transportation on complex internal roads, support reinforcement inside the tunnel, and high-precision positioning of the steel pipe. The installation positioning of the first steel bifurcation pipe met the standards.

In the next step, the Songyang Pumped Storage Company of China Three Gorges Construction Engineering Corporation will continue to consolidate responsibilities of all parties, strictly control the entire process quality of penstock fabrication, transportation, installation, and welding, and advance subsequent construction.

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