山区河流低坝引水枢纽中冲沙闸的设计

Design of Flushing Gate among Approach Hinges of Low Dam on River in Mountain Area

本文分析了伊、洛河上引水式水电站低坝引水枢纽中冲沙闸在设计布置方面存在的主要问题，论述了现行计算方法应用于山区河流引水枢纽中冲沙闸设计的局限性，提出了根据天然河道稳定主槽宽度、冲沙闸和冲沙槽的冲沙及沉沙要求进行冲沙闸设计计算的新方法，并通过算例的计算，证明了该计算方法的合理性。

The main problems existing in design and management of the flashing gate among the low dam approach hinges of approach water power station on the Yi River and Luo River are analyzed.The limitation of present calculating method used in the flushing gate design among the approach hinges on the mountain area river is discussed. A new method is put forward according to the width of the natural and steady major bed,the need of sand-flushing and crurrent sand of the flushing gate and channel. This method is proved reasonable by calculation examples.