隧道浅埋破碎带注浆预加固技术效果分析与评价

Analysis and evaluation on pre-strengthening technology by grouting to shallow fracture zone during tunnel construction

针对内蒙古自治区鲁霍一级公路阿拉坦隧道进出口埋深较浅,围岩破碎,其自稳能力差,难以形成平衡拱效应,通过采取了注浆预加固技术,并经监控量测进行效果分析与评价,证明该技术采用的合理性与可靠性。

The entrances of Allah Tunnel in the First-class Highway from to Huolinhe in Inner Mongolia were located at the shallow depths,with wall rock fracture and its poor stability and being difficult to create balance arch effect.This article describes the pre-strengthening technology by grouting,which was proven to be reasonable and reliable by monitoring and measuring.