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The main tunnel of ganxigou tunnel of Zhengzhou Wanzhou high speed railway breaks through ten thousand meters
On June 17, the reporter learned from the zhengwan Railway Project Department of the fourth company of China Railway First Bureau that the total excavation of the main tunnel of ganxigou tunnel, a key and difficult project of the whole line, has exceeded the 10000 meter mark, which laid the foundation for the scheduled opening of zhengwan high-speed railway.
넶8 2020-06-19 -
郑万高铁干溪沟隧道正洞掘进破万米
6月17日，记者从中铁一局四公司郑万铁路项目部获悉，全线控制性重难点工程干溪沟隧道正洞累计掘进突破10000米大关，这为郑万高铁如期开通奠定了基础。
넶33 2020-06-19 -
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深圳建成国内最大直径汽车隧道通风竖井
从坪盐通道施工现场了解到，坪盐通道坪山段已完成95%，马峦山特长隧道和通风竖井已贯通。其中，隧道通风竖井以15米的内直径成为目前国内最大的汽车隧道通风竖井。
넶14 2020-06-19
