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四川雅砻江二滩水电站已列入“七五”计划,由水电部和四川省合资兴建。该电站距攀枝花市(原渡口市)40km,设计装机容量300万kw,保证出力100万kw,多年平均发电量162亿kwh。枢纽由河床混凝土双曲拱坝、左岸地下厂房系统、右岸泄洪隧洞和左岸过木机道组成。最大坝高达240m,坝体设有泄洪表孔和中孔;地下厂房尺寸296.2×26×72.6m(长×宽×高),主变开关室和尾水调压室等均布置在山体内,两条
Sichuan Yalong River Ertan Hydropower Station has been included in the “Seventh Five-Year” plan, the Ministry of Water Resources and Sichuan Province joint venture. The power plant from Panzhihua City (formerly Ferry City) 40km, designed capacity of 3 million kw, to ensure output of 1 million kw, multi-year average generating capacity of 16.2 billion kwh. The hub consists of riverbed concrete double curvature arch dam, left bank underground powerhouse system, right bank spillway tunnel and left bank crossing road. The maximum dam is up to 240m, the dam body is provided with spillway holes and mesopores; the size of underground workshop is 296.2 × 26 × 72.6m (length × width × height), the main transformer switch chamber and tailrace surge chamber are all arranged in the mountain. Two