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2007年三峡工程建设及运行管理情况1工程完成情况主要控制节点目标三期下游土石围堰于2月28日成功爆破,下游基坑提前进水。汛前水上开挖完成,水下开挖至高程47m至53m,满足右岸机组调试和发电要求。导流底孔4月份完成封堵,汛前泄洪坝段11个表孔墩墙及2(?)排漂孔上半幅墩墙恢复按计划完成,满足防洪度汛要求。船闸南线、北线分别
Construction and Operation Management of the Three Gorges Project in 2007 1 Completion of the Project The main control node The third phase of the downstream earth-rock cofferdam was successfully demolished on February 28, and the downstream foundation pit advanced into the water in advance. Before the flood season, water excavation is completed, excavation to the elevation of 47m to 53m, to meet the right bank unit commissioning and power generation requirements. The diversion bottom hole was closed in April. The 11 pier wall and 2 (?) Row drift hole on the flood discharge dam before the flood season were completed according to plan, meeting flood control flood demand. South lock line, north line respectively