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1 水库特征小浪底水库最高蓄水位为275m,总库容为126.5亿 m~3,其中支流库容占总库容的41.1%。水库最大水面面积为272.3km~2,其中支流库面面积为110.4km~2,占总面积的40.3%。支流累积库段长159.7km(未含支沟库段),为干流库长的1.24倍。275m 水位时,最大库周边线长度为905km。黄河干流河道为峡谷型,上段较窄,下段较宽。三门峡站至板涧河口,长约65km,河谷宽一般为200～400m;板涧河口至小浪底坝址,长约65km,河谷宽一般为500～1000m。坝址以上26km 的峡谷八里胡同,长4km,河谷最窄约200～300m,水面
1 Reservoir Characteristics The highest water level of Xiaolangdi Reservoir is 275m with a total storage capacity of 12.65 billion m 3, of which 41.1% of the total storage capacity is tributary storage. The maximum surface area of the reservoir is 272.3km ~ 2, of which the area of tributaries covers 110.4km ~ 2, accounting for 40.3% of the total area. The tributary accumulative reservoir length is 159.7km (without the ditched ditches), which is 1.24 times of that of the mainstream. At 275m water level, the maximum length of the perimeter of the library is 905km. The main stream of the Yellow River canyon type, the upper section narrower, the lower section wider. Sanmenxia Station to Banjian estuary, about 65km, the width of the valley is generally 200 ~ 400m; Banjian Hekou to Xiaolangdi dam site, about 65km, width of the river valley is generally 500 ~ 1000m. Dam 26km above the valley valleys, 4km long, the narrowest of the valley about 200 ~ 300m, the water surface