结合襄渝线安康至重庆段增建二线第一长隧新大巴山隧道施工实际，总结了隧道开挖安全快速通过煤层瓦斯及旧煤窑采空区的施工方法。在制定合理的施工方案后，施工过程中主要采用了超前地质预报、通风、瓦斯检测、超前支护、周壁注浆、实施揭煤工艺等措施，使隧道施工快速安全通过了煤层瓦斯及旧煤窑采空区，达到了预期的目的，为类似的工程积累了经验。

 Taking the construction of New Dabashan tunnel on No. 2 line of AnkangChongqing section of XiangfanChongqing railway as an example, the author summarizes the construction technology for safe and rapid tunneling through coal/gas area and ancient coal mine goaf in this paper. On basis of design of reasonable construction scheme, countermeasures, such as advance geology forecasting, ventilation, gas monitoring, advance reinforcement, surrounding rock grouting and coal mining, are taken, which ensures the safe tunneling through coal/gas area and ancient coal mine goaf. The paper can provide reference for similar projects in the future.