浅埋小净距隧道下穿城市快速路施工技术

Construction Technique of Shallow Buried Tunnel with Small Spacing Under-passing the Urban Expressway

以重庆市北部新区金童路南段道路工程中火风山隧道工程为背景,介绍了该隧道下穿城市快速路过程中地形、地质、周边环境等方面限制因素,并进行了施工重难点分析。针对性地研究并制定了隧道施工技术方案,现场监控量测结果表明,该技术方案安全、有效,可为类似工程提供借鉴。

Taking the Huofeng Mountain Tunnel project in south section of Jintong Road engineering in northern new district of Chongqing as the background, this paper introduced the limited factors, such as topography, geology, environment in the process of tunnelling under-passing urban expressway, and analyzed the construction difficulties. The technical scheme of tunnel construction was studied. The field monitoring results show that the technology is sate and effective, and it could provide useful reference for similar projects.