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四川省江口水电站于1887年11月10日开工,经七个月的紧张施工,第一期工程已基本完成,达到了安全渡汛的要求,并逐步向第二期工程过渡。 江口水电站一期工程,主要为导流明渠。该明渠位于左岸,既是右岸第二期工程施工时的过水建筑物,又是主坝的一部份。其过水宽度约为溢流坝总长的1/2,原河床的1/3。一期工程共完成土石开挖约12万m~3,砌石约3万m~3,浇筑混凝土12万m~3.
The Jiangkou Hydropower Station of Sichuan Province started on November 10, 1887. After seven months of intense construction, the first phase of the project has basically been completed, meeting the requirements of crossing the flood season and gradually transitioning to the second phase of the project. Jiangkou hydropower station a project, mainly for diversion channel. The open channel is located on the left bank. It is not only a water-crossing building during the construction of the second phase of the right bank, but also a part of the main dam. Its over-water width is about 1/2 of the total length of the overflow dam and 1/3 of the original riverbed. The first phase completed a total of about 120,000 m 3 of earth and rock excavation, about 30,000 m 3 of masonry and 120,000 m 3 of concrete.