铁路隧道超浅埋漏顶段施工技术研究

Study on Construction Technology of Super Shallow Buried Top Section of Railway Tunnel

以某铁路隧道浅埋漏顶段施工实际为例,探讨铁路隧道超浅埋漏顶段施工技术的应用。通过分析隧道超浅埋段的地质状况,利用拱部明挖拱下暗挖,拱部护拱封闭隧道保护,拱下三台阶七步开挖法快速穿过隧道浅埋段。并对该施工技术同原设计方案在施工进度、质量安全、成本控制等方面加以对比分析,得出成功结论,为类似工程实践提供了参考借鉴。

This paper takes the construction of shallow tunnel as an example, discusses the application of construction technology of super shallow buried in the top section of the railway tunnel.In this paper, the geological condition of super shallow buried section of the tunnel is analyzed.Under the arch of the arch, the arch tunnel is protected under the arch section, and the seven step three step excavation method is used to quickly pass through the shallow buried section of the tunnel.The construction technology and the original design scheme in the construction schedule, quality, safety, cost control and other aspects of the comparative analysis, draw a successful conclusion, to provide a reference for similar engineering practice.