天桥水电站是黄河中游北干流上第一座实验性电站。电站为径流式,设计水头18米,装机四台,总容量12.8万千瓦。该电站自1977年投产以来,已发电八亿多度,为陕北、晋西北的工农业发展,作出了很大贡献。建筑物和发电机组的运行基本正常,但是,由于对泥沙运动规律认识不深,估计不足,也出现过一些新的问题。本文仅就1980年6月蜗壳、尾水管泥沙淤堵的处理方法和 Tianqiao Hydropower Station is the first pilot station on the north part of the Yellow River. Power station for run-off, head design 18 meters, installed four, the total capacity of 128,000 kilowatts. Since the plant was put into operation in 1977, it has generated over 800 million kWh of power and contributed greatly to the development of industry and agriculture in northern Shaanxi and northwestern Shanxi. The operation of buildings and generating units is basically normal. However, due to lack of understanding of the law of sediment movement and lack of estimation, some new problems have also emerged. This article only in June 1980 volute, tail pipe silt sediment handling methods and