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水拦关水库为我县老愚公梯级水电站的调蓄水库。控制流域面积46.4平方公里,总库容2,640万立方米。对以下三个梯级引水式电站的发电流量起着调节作用,四级电站总装机8,320瓩。水拦关大坝全长183米,其中溢流段长18.5米。非溢流坝及溢流坝最大坝高分别为47.5米及39.3米。大坝采用圬工重力填料坝(图1)。本坝按三级建筑物标准设计(即五十年一遇洪水设计,五百年一遇洪水校核)。
ShuiGuanGuan reservoir for my county old YuGong cascade hydropower storage reservoir. The control basin covers an area of 46.4 square kilometers and has a total storage capacity of 26.4 million cubic meters. The following three cascade diversion plant power generation regulation plays a regulatory role, the total installed capacity of four power plants 8,320 瓩. The dam of water barrage is 183 meters in length, of which the overflow section is 18.5 meters long. The maximum dam height for non-spillway and spillway dam is 47.5 meters and 39.3 meters respectively. The dam uses a paddy gravity dam (Figure 1). The dam is designed according to the standard of three buildings (that is, the flood design in 50 years and the flood check in 500 years).