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湖南省湘江大源渡水利电力枢纽工程由发电站、泄洪闸、船闸三部分组成,总投资10亿元人民币。发电站和泄洪闸分两期施工,并在两者中间先修筑一座沿湘江水流方向长360m的砼纵向围堰,该围堰距左、右岸分别为350m和500m。水下部分为矩形,底宽6～10.36m,必须在枯水期完成。枯水期正常水深为3.9～4.2m,流速为1.2～1.6m/s 。共要浇筑水下砼1.4万m~3。是国内水电工程中罕见的
Hunan Xiangjiang Dayuandu Water Conservancy and Power Project consists of power station, flood gate and lock. The total investment is 1 billion yuan. The power station and flood discharge sluice shall be constructed in two phases and a concrete longitudinal cofferdam with a length of 360m along the Xiangjiang River current shall be built between the two. The cofferdam shall be 350m and 500m away from the left and right banks, respectively. Underwater part of a rectangular, bottom width of 6 ~ 10.36m, must be completed in dry season. The normal water depth in dry season is 3.9 ~ 4.2m and the flow rate is 1.2 ~ 1.6m / s. To pour a total of 1.4 million m 3 underwater concrete. It is rare in domestic hydropower projects