本刊讯2013年1月8日,中国铁建十八局集团首次使用全国首台复合型硬岩隧道掘进机,洞开重庆轨道交通6号线铜锣山隧道,5432m的施工段双线安全贯通。6号线是重庆市轨道交通规划“九线一环”中东南至西北方向的骨干线路,二期工程全长37.5km。中国铁建十八局集团担负施工的单洞全长5633m的铜锣山隧道,涌水大,穿越煤层、瓦斯、岩溶发育带、石膏岩、断层带等复杂地质,是全 On January 8, 2013, China Railway Construction Eighteen Bureau Group for the first time using the first complex type of hard rock tunnel boring machine, opening of Chongqing Rail Transit Line No. 6 Tongluo Tunnel, 5432m of the construction of two-lane safety . Line 6 is the backbone of Chongqing’s rail transit plan, “a part of the 9th line” in the southeast to the northwest, and the second phase project is 37.5km in length. The tunnel of Tongluo Mountain, a single-hole 5633m long single-hole construction under the construction of the 18th Bureau of China Railway Construction Corporation, has a large gushing water and complex geological features such as coal seam, gas, karst development zone, gypsum rock and fault belt