【摘要】 桥街水电站出口消能池受坝址区地形地质条件的限制,横断面布置为不对称形。结合消能池结构布置,就底流式消能中下挖式消能池和综合式消能池的消能效果展开对比研究,选取了合理的消能方式。通过水力模型试验,对所选消能池结构设计进行优化,试验结果表明不对称的扩大断面形式带来的过流能力加大效应明显低于其因不对称带来的对水流的扰动效应,池内自中部开始布设消能墩消能效果显著。无论从结构布置,还是消能效果方面,选用底流综合式消能池明显优于下挖式消能池。更多还原

【Abstract】 The energy dissipation pool at the outlet of Qiaojie Hydropower Station is confined by the topographic and geological conditions of the dam site area. Combined with the structure layout of energy dissipation pool, the energy dissipation effect of undercutting energy dissipation pool and comprehensive energy dissipation pool in the bottom flow energy dissipation is compared and studied, and a reasonable energy dissipation method is selected.Based on the hydraulic model test, the structure design of the selected energy dissipation pool is optimized.The test results show that the effect of increasing the flow capacity caused by asymmetric enlarged section is significantly lower than the disturbance effect. The energy dissipation effect of installing energy dissipation piers in the middle of the pool is remarkable. In terms of structure layout and energy dissipation effect, the bottom-flow comprehensive energy dissipation pool is obviously superior to the bottom-dig energy dissipation pool.更多还原