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三峡水库有什么特点?国际上通常按库容衡量一座水库的大小。三峡水库校核工况下总库容为450亿立方米(对应校核洪水位180.4米,即大坝防御“万年一遇”加10%洪水时的库水位;正常蓄水位175米时,库容为393亿立方米),在我国排名第一,在世界居第23位(世界上最大的水库是乌干达的欧文瀑布水库,其库容达2048亿立方米)。三峡水库具有以下显著特点:三峡水库是一个典型的狭长河道型水库。从三斗坪坝址到水库末端的重庆江津区花红堡,三峡水库全长667千米,平均宽度仅为1576米。这种水库十分有利于汛期冲沙、汛后蓄水的“蓄清排浑”运用方式,有利于水库的长期运用。三峡水库虽大,但与浩荡东去的长江水量相比,其总库容仅占三峡坝址年径流量的8.7%,所以只能对水库上
Three Gorges Reservoir What are the characteristics? International usually by volume to measure the size of a reservoir. The total storage capacity of the Three Gorges Reservoir under check condition is 45 billion cubic meters (corresponding to the flood water level 180.4 meters, that is, the dam water level when the dam is defensive, “every once in a while” plus 10% of the flood level; the normal water level is 175 meters , With a storage capacity of 39.3 billion cubic meters), ranking first in our country and the 23rd in the world (the largest reservoir in the world is Owen Falls Reservoir in Uganda, with a storage capacity of 204.8 billion cubic meters). Three Gorges Reservoir has the following salient features: The Three Gorges Reservoir is a typical narrow channel reservoir. From Sandouping dam site to the end of the reservoir in Chongqing Jiangjin District Red Fort, the Three Gorges Reservoir, a total length of 667 km, the average width of only 1576 meters. This reservoir is very conducive to flushing the flood season, after the flood storage “storage clear muddy ” mode of use, is conducive to the long-term use of the reservoir. Although the Three Gorges Reservoir is large, its total storage capacity accounts for only 8.7% of the annual runoff of the Three Gorges Dam site compared to the mighty eastward Yangtze River water volume,