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二滩水电站位于金沙江最大支流雅砻江上,距四川省攀枝花市区46km。水库正常蓄水位1200m,总库容58亿m~3,属季节调节水库。电站安装6台550MW水轮发电机组,总装机容量3300MW,年发电量170亿kwh。二滩水电站主要建筑物包括高240m、长774.54m的溢流式抛物线型双曲拱坝,长330m的水垫塘,高35m的二道坝,右岸泄洪隧洞,左岸地下发电厂房系统及过木设施等。主体工程工程量:土石方明挖800万m~3,地下工程开挖量370万m~3,砼及钢筋砼650万
Ertan Hydropower Station is located in the Yalong River, the largest tributary of the Jinsha River, 46km away from the urban area of Panzhihua in Sichuan Province. Reservoir normal water level 1200m, with a total storage capacity of 5800000000 m ~ 3, is a seasonal regulation of reservoirs. The station installed 6 sets of 550MW hydroelectric generating sets with a total installed capacity of 3300MW and an annual generating capacity of 17 billion kwh. Ertan Hydropower Station main buildings include 240m high, 774.54m overflow parabolic arch dam, 330m long plunge pool, 35m high dam, right bank spillway tunnel, the left bank of the underground powerhouse system and over the wood Facilities and so on. The volume of the main engineering works: earth excavation 8 million m ~ 3, excavation of underground works 3.7 million m ~ 3, 6.5 million concrete and reinforced concrete