地址水平旋喷桩在隧道施工中的应用

Application of Address Horizontal Jet Grouting Pile in Tunnel Construction

旋喷桩施工在路基施工特别是在软基处理中,应用较为广泛,技术也相对成熟。但在隧道施工中较为少见,尤其是在旋喷桩水平施工、超前预加固应用较少。论文主要通过介绍中国银西铁路田塬隧道砂层地质中超前水平旋喷桩的施工情况,通过超前预加固的方式,在保证掌子面施工稳定的情况下,优化施工工法,解决了现场施工难题,对同类隧道工程施工具有一定的借鉴意义。

Jet grouting pile is widely used in subgrade construction,especially in soft foundation treatment,and its technology is relatively mature.However,it is rare in tunnel construction,especially in horizontal construction of jet grouting pile and in advance prereinforcement.This paper mainly introduces the construction of advanced horizontal jet grouting pile in the sand stratum geology of Yinxi Railway Tianyuan,China,by means of advance prereinforcement,under the condition of ensuring stable construction of the palm face,the construction method is optimized to solve the difficult problem of site construction,which has certain reference significance for the construction of similar tunnel projects.