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福彩3d和尾跨度

发表时间:2020-01-17 23:31:58  浏览量:933550
?Daxing airport green drainage system is about to be completed new Beijing News (reporter Wu Tingting correspondent Zhao Zhenlong) today (April 25), reporters learned from Daxing airport that a green drainage system that can realize "infiltration, stagnation, storage, purification, use and drainage" is 福彩3d和尾跨度 about to be completed. After the construction of the project, it can realize the natural accumulation, natural infiltration, natural purification and Sustainable water cycle. In the construction process of the project, the environmental protection concept of "sponge city" was fully used for reference. Five regulating pools for rainwater collection and 2451 meter long open channel for regulation and storage were successively built in the airport flight area and public area. An artificial landscape lake with an area of 210000 square meters has been built in the public area. The total volume of rainwater collection facilities in the whole site will reach 2.31 million cubic meters, which is equivalent to 2.5 Kunming lakes, three times of the daily average water flow into Beijing of South-to-North Water Transfer Project. In addition, the drainage system of Daxing airport fully considers the influence of the discharge water on the surrounding water system in the flood season, and adopts the secondary drainage system, which is composed of rainwater pipe network (drainage ditch), regulating pool, pump station and open drainage channel. When the airport encounters continuous heavy rainfall, the airport drainage system cuts the peak of rainwater for many times, so that the rainwater flows horizontally and automatically into the drainage channel, avoiding the airport rainwater from forming a flood peak and impacting the river channel. Relevant director of Daxing airport construction headquarters said that the drainage system of Daxing airport can not only play a role in rainwater collection and stable drainage, but also play a major role in regulating the "small ecology" of the airport.
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