The Design of Flood Discharging and Energy Dissipation for the Tuka River Hydropower Project

The Tuka hydropower project is a medium-sized hydropower development with a roller compacted concrete gravity dam in Yunnan province,China.Taking into consideration the flood,geological and tailrace conditions,as well as the layout of the project,the way of flood discharging and energy dissipation of the project complex was optimized at the construction details design stage by reference to the flood discharging and energy dissipation design experience of other medium-sized hydropower projects of its kind at home.The hydraulic model test indicates that the adoption of a stepped spillway face with flat baffle piers and a bucket basin has proved reasonable.