为弄清映秀湾水电站现运行方式对其首部枢纽泄洪能力的影响,对河床变形进行了系统的观测。资料分析结果认为:现运行方式与设计运行方式不同,导致闸前右边滩悬沙大量落淤,使4、5号闸孔泄流能力达不到设计标准。 In order to understand the impact of the current operation mode of Yingxiuwan hydropower station on the flood discharge capacity of the first hub, the riverbed deformation was systematically observed. Data analysis results show that: the current operation mode and design mode of operation are different, leading to a large number of suspended sediment sediment on the right side of the gate before silting, so that the 4,5 # gate discharge capacity failed to meet the design standards.