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王瑶水库是延安地区的一座大型水库,坝址位于杏子河中游,土坝高55米,集水面积820平方公里,总库容2.03亿米~3,水库泄洪洞位于左岸,洞底高程为1145.710米(相应坝高10米)。最大泄洪流量79.0米~3/秒。多年平均径流量4000万米~3,多年平均输沙量867万米~3。
Wangyao reservoir is a large reservoir in Yan’an area. The dam site is located in the middle reaches of Xingzi River. The earth dam is 55 meters high with a catchment area of 820 km 2 and a total storage capacity of 203 million m 3. The reservoir spillway tunnel is located on the left bank with an elevation of 1145.710 Meters (corresponding dam height 10 meters). The maximum flood discharge flow 79.0 m ~ 3 / sec. The average annual runoff of 40 million meters ~ 3, the average annual sediment transport volume of 8.67 million meters ~ 3.