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首页> 外文期刊>International Journal on Hydropower & Dams >Gilgel Gibe Ⅱ, Ethiopia, back on line after tunnel repairs
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Gilgel Gibe Ⅱ, Ethiopia, back on line after tunnel repairs

机译:隧道修复后,埃塞俄比亚的吉尔吉·吉贝二世(Gilgel GibeⅡ)重新上线

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摘要

The 420 MW Gibe Ⅱ hydro plant in Ethiopia resumed operation in December 2010, after repairs to a tunnel collapse which occurred in January 2010, shortly after its inauguration. Adverse geological conditions had caused a breach in the concrete lining of the 25 km-long tunnel, at a depth of 9 km on 22 January last year, and EEPCo had to close the powerplant. Gibe Ⅱ generates power using water discharged from the 180 MW Gilgel Gibe Ⅰ plant, 26 km upstream. Two 1000 m-long penstocks, which run at a steep gradient, supply Gibe Ⅱ. The complex is about 250 km southwest of Addis Ababa, on the Omo river. Gibe Ⅱ was constructed by Salini Construttori of Italy, at a cost of around US$ 407 million.
机译:埃塞俄比亚的420兆瓦GibeⅡ水电站在对2010年1月成立的隧道坍塌进行修复后不久,于2010年12月恢复运行。不利的地质条件导致去年1月22日9公里深度的25公里长隧道的混凝土衬砌破裂,EEPCo必须关闭发电厂。 GibeⅡ使用从上游26 km的180 MW Gilgel GibeⅠ电厂排放的水发电。 GibeⅡ供应两根1000 m长的压力管道,它们以陡峭的坡度运行。该建筑群位于奥莫河亚的斯亚贝巴西南约250公里。 GibeⅡ号由意大利的Salini Construttori建造,造价约4.07亿美元。

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