青海省境内许多引水式水电站都位于海拔2000米高程以上,冬季长且严寒,气温达零下30℃,冰凌严重,常常堵塞渠道及电站进口,影响正常运行,甚至造成渠堤及护坡坍落,为害很大.我们在实际工作中,摸索到一些防止冰害的措施,现简单介绍如下:一进水闸1.若渠道的引用流量小于河道来水流量,可在渠道进水闸前设置漂浮围栅或固定导板导引冰凌排往河道下游. Many water-diversion hydropower stations in Qinghai Province are located at altitudes of over 2000 meters above sea level. In winter, the weather is long and cold with temperatures of minus 30 ℃. Ice icicles are serious and often block the import of channels and power stations, affecting normal operation and even causing dikes and revetments to slump. Very large .In practice, we found some measures to prevent ice damage, are briefly described as follows: A sluice 1. If the channel of reference traffic is less than the water flow to the channel, the channel can be set before the floodgate barrier or Fixed guides lead the ice to the lower reaches of the river.