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最近,由中国电建集团所属水电五局承建的锦屏二级水电站4号调压井投入充水发电运行,标志着世界最大的调压井群工程——雅砻江锦屏二级水电站1至4号调压井工程完美收官。雅砻江锦屏二级水电站上游调压室是世界上规模最大的差动式调压室,由4个调压井组成,井间距为60米,单个调压室竖井最大截面为32.481米×30米,总高度为148.8米。整个调压井工程的隧洞长度长,引用流量大,结构设计技术难度处于世界前列,对施工技术提出了严峻的挑战。
Recently, No. 4 surge shaft of Jinping No.2 hydropower station contracted by China Power Construction Group’s hydropower five innings was put into operation with water-filling and generating operation, marking the world’s largest surge shaft group project - Jinping II hydropower station of Yalong River 1 to 4 No. Surge Surge Project perfect ending. The upstream pressure regulating chamber of the Yalong River Jinping II Hydropower Station is the largest differential pressure regulating chamber in the world and consists of 4 surge shafts with a well spacing of 60m. The maximum cross-section of a single surge tank shaft is 32.481mx 30m , The total height of 148.8 meters. The entire length of the surge shaft surge, cited traffic, structural design and technical difficulties in the forefront of the world, the construction technology posed a serious challenge.