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(一) 前言龚咀水电站位于四川省乐山市境内大渡河干流上,距成都165km,是一个以发电为主兼顾漂木(100万m~3/年)、航运等综合利用的枢纽。电站控制流域面积76130km~2,多年平均径流量470亿m~3,多年平均悬移质输沙量为2990万t,水库正常蓄水位为528.0m,死水位(汛限水位)520.0m,千年设计洪水位527.5m,正常高水位时的库容3.45亿m~3,520～
(1) Foreword Gongzui Hydropower Station is located in the main stream of Dadu River in Leshan City, Sichuan Province, 165km away from Chengdu. It is a hub for comprehensive utilization of power generation, taking into account the production of floating wood (1 million m 3 / year) and shipping. The control basin area of the power station is 76130km ~ 2 and the average annual runoff is 47 billion m ~ 3. The annual average suspended sediment transport capacity is 29.9 million tons, the normal reservoir water level is 528.0m, the dead water level (flood control water level) is 520.0m, Millennium design flood 527.5m, the normal high water storage capacity of 345 million m ~ 3,520 ~