斯木塔斯水电站台阶式溢洪道消能设计

摘要

Model test of Xinjiang Simutasi hydropower station step spillway showed that:the step over-flow surface has excellent energy dissipation effect;its energy dissipation rate is related with step size,single-wide traffic and other factors. The elimination energy rate can reach 80% or higher in the case of small flow.The downstream scour depth is also decreased.The condition is introduced in the paper.%新疆斯木塔斯水电站台阶式溢洪道的模型试验表明：台阶溢流面有较好的消能效果，其消能率与台阶尺寸、单宽流量等因素有关，在小流量的情况下，消能率可达到80％以上，对下游冲坑深度也有所降低。本文对此加以介绍。