关口水电站双室式压力前池设计

Design of a Forebay With Double Chamers at Guankou Hydropower Plant

山区性河流上修建径流引水式水电站，面临泥沙问题，泥沙对水工建筑物的影响和对水轮机的严重磨损，使汽蚀现象加剧。该文着重以关口水电站压力前池的设计为例，讨论了如何有效地防止泥沙进入压力管，从而减少因泥沙而造成的损失。

During consturcting the run-of-river diversion hydropower plant on the mountainous stream, the sediment problem is faced. The sediments affect the hydraulic structures, wear the hydraulic turbines seriously, and cause its heavycavitation. This article focuses on the design of the forebay of Guankou Hydropower Plant as an example, and discusses how to prevent the sediments entering into the penstocks. Thus, the losses caused by the sediments will be decreased.