en.Wedoany.com Reported - The ecological flow radial gate of the No. 2 diversion tunnel at the Lawa Hydropower Station on the upper Jinsha River recently passed acceptance, while the plug gate of the same tunnel was smoothly lifted. The simultaneous completion of these two key tasks marks the full commissioning of the station's diversion and ecological flow guarantee system, ushering the project into a new phase.
Located on the main stream of the Jinsha River at the border between Sichuan and Tibet, the Lawa Hydropower Station is a key clean energy project under China's 14th Five-Year Plan and an important component of the upper Jinsha River hydropower development plan. The diversion tunnel group features large scale and high technical specifications, serving dual functions of construction diversion and ecological water replenishment. The ecological flow radial gate, which passed acceptance, is the core equipment for ensuring river ecological flow. It operates under complex conditions, has strong pressure-bearing capacity, and requires high precision in sealing and opening/closing. The project department conducted a comprehensive inspection of the gate's structure, installation accuracy, hoist system, sealing devices, and safety protection, referencing design specifications, construction standards, and safety regulations. After comprehensive evaluation, all equipment indicators met design and operational requirements, and the gate successfully passed acceptance.
Following the acceptance of the radial gate, the lifting operation of the plug gate for the No. 2 diversion tunnel was carried out on site. As the command was issued, the plug gate was lifted smoothly and steadily, allowing water to flow along the planned path. Throughout the process, equipment operation was stable and procedures were standardized, verifying the reliability of the gate, hoist, and supporting systems. Once the ecological flow radial gate is officially put into operation, it can precisely regulate the discharge volume based on river flow during the impoundment phase, continuously ensuring the basic ecological flow of the lower Jinsha River, maintaining the aquatic ecological environment, and achieving coordinated development of hydropower and ecological protection.
In the next steps, the project department will continue to adhere to safety and quality bottom lines, coordinate subsequent construction tasks, and strive to complete and commission the station as soon as possible, contributing to regional clean energy development and the implementation of the West-to-East Power Transmission strategy.
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