复杂环境下小洞径隧洞施工技术浅析

Analysis on Construction Technology of Tunnel with Small Diameter under Complex Environment

该工程排水洞受环境因素影响较大,结合右岸边坡整体施工规划,对隧洞施工进行浅析,笔者通过利用开挖支护工序关系,优化爆破设计参数,采取光面爆破钻孔超深及回填,利用自制简易移动式台车等一系列方法以保证小洞径隧洞快速施工,为后续复杂环境下小洞径隧洞施工提供重要的参考。

The drainage tunnel of this project is greatly affected by environmental factors.Combined with the overall construction planning of the right bank slope,the construction of the tunnel is analyzed.In this paper,the relationship between excavation and support processes is used to optimize blasting design parameters,and a series of methods are adopted to ensure the rapid construction of the small diameter tunnel,such as smooth blasting drilling and backfilling,self-made simple mobile trolleys.It provides an important reference basis for the construction of small diameter tunnel in the complex environments.