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国产精品国产三级国产普通话 - Beijing Underground Diameter Line
Source:CRECDate:2018年11月27日

With a total length of 6,225 meters, Beijing Underground Diameter Line is located at Beijingxi Railway Station. The line is roughly east-west, including 181. 2-meter-wide open excavation section, 871. 3-meter undercutting tunnel and 5,175-meter shield tunnel 国产精品国产三级国产普通话. .

Beijing Underground Diameter Line

The project is the first fully electrified tunnel of railway built under prosperous urban area. Under complex geological condition of sandy gravel, CREC adopted a large slurry shield whose diameter reaches 11 国产aⅴ激情无码久久久无码. 97 meters to excavating this tunnel, which is firstly used in China. As the tunnel of longest construction distance using large-span shallow-buried tunneling method, it is also the deepest underground continuous wall in Beijing.

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