窄缝消能在老炉下水库溢流坝中的应用

Application of Energy Dissipation with Narrow Slots to the Spillway of Laoluxia Reservoir

针对工程所处位置的特殊地形以及由此带来的下游消能问题,通过多方案的比较试验研究,提出适合工程 实际的坝面窄缝消能工方案。该布置较好地适应了消能区地形,挑射水舌沿竖向和纵向拉开、扩散较充分,水舌在 空中的消能率增大,水舌外缘落点适度,从而减轻了下游河床的冲刷,较好地解决了老炉下水库溢流坝下游的消能 防冲问题。试验推荐方案已被设计采用。

Aimed at special topography of the project and its energy dissipation downstream brought about thereby, the authors put forward a scheme of energy dissipation with narrow slots on dam surface through comparing a lot of schemes, which is applicable to the project reality. The arrangement is suitable to the topography of baffle areathe deflecting nappe will extend vertically and longitudinally and diffuse sufficiently with its dissipation rate increasing in the air and outer edge of nappe falling in appropriate position, thus mitigating scouring of downstram riverbed and solving well baffle and erosion control downstream the spillway of Laoluxia Reservoir. The recommended scheme has been adopted in the design.