重庆临江门车站隧道地处繁华城区，周边环境复杂，隧道开挖断面为420.96m2的超大型断面,且断面尺寸变化多,而且隧道穿越地层为硬质砂岩，国内尚没有可供借鉴的经验，施工难度极大。隧道采用双侧壁导坑钻爆法组织施工，通过巧妙应用多种控制爆破技术、留核心岩台的整体式衬砌技术、监控量测技术和其他配套技术，安全、优质、快速地建成了隧道，并取得了较好的经济效益。

Linjiangmen station tunnel, which is located in busy urban areas, has complex surrounding environment. The area of the excavation crosssection of the tunnel reaches 420.96m2 and the dimensions of the tunnel crosssections change frequently. The tunnel runs through hard sandstone. There is no experience available in China that can be used as reference for the construction of the tunnel. Therefore, there exist great difficulties in the construction of the tunnel. The tunnel is constructed by means of doublesidedrift blasting method. Due to the adoption of appropriate controlled blasting technologies, integral lining technologies (with the core rock benches being kept), monitoring and measurement technologies and other matching technologies, the tunnel is completed with safety, high quality and high speed and good economic efficiency is achieved. The construction technologies for the tunnel are presented in the paper.