柳树沟水电站泄洪消能试验研究

Tests and research on flood discharge and energy dissipation of Liushugou hydropower project

结合新疆开都河柳树沟水电站溢洪洞及泄洪洞挑流鼻坎体型优化的试验研究,通过调整鼻坎体型,提出了一种适合于窄泄槽、高流速、泄槽与河道交角大、窄河道的异型窄缝鼻坎。这种鼻坎水舌不仅能沿纵向、竖向拉开,还能横向有所扩散,使水舌覆盖消能区较大范围,削弱了岸边回流,减轻了河床冲刷,且有效地控制了水舌落水位置、范围及分布,减少淤积体对电站尾水抬高的影响。

Based on the tests and research on shape optimization of flip bucket for the spillway tunnel of Liushugou hydropower project on the Kaiduhe River in Xinjiang, and through modification of the flip bucket shape, a fashioned slit -type bucket, suitable to narrow chute and river course with high flow velocity and large intersection angle of the chute and river course, is proposed. The nappe of this type of bucket can not only extend along longitudinal direction, but also disperse in latitudinal direction and cover a large range of energy dissipation zone, which reduces backflow to the bank and river - bed scouring, effectively controls the falling location, range and distribution of nappe and decreases the effect of sedimentation on tailwater raising.