监控量测技术在浅埋黄土隧道中的应用

Application of monitoring and measurement technology in shallow loess tunnel

监控量测技术作为隧道施工不可或缺的一部分,不仅能保证隧道施工的安全进行,更能有效控制施工成本。王夏高速桑科隧道以砂质黄土为主,围岩自稳能力较差,浅埋段易坍塌,给隧道开挖带来了极大的风险,依托王夏高速桑科隧道,介绍了监控量测技术在浅埋黄土隧道中应用,监测结果表明:监测方案科学合理,监测得到的拱顶下沉与周边位移值均在允许值以内,保证了隧道施工的安全进行,可为同类工程提供参考。

As an indispensable part of tunnel construction,monitoring measurement technology can not only ensure the safety of tunnel construction,but also effectively control construction costs.The Wangxia Expressway Sangke Tunnel is mainly sandy loess,the surrounding rock has poor self-stability,and the shallow buried section is easy to collapse,which brings great risks to the tunnel excavation.This article relies on the actual engineering and introduces the monitoring and measurement technology.The monitoring results show that the monitoring plan is scientific and reasonable,and the monitored vault subsidence and surrounding displacement values are within the allowable value,which ensures the safe progress of tunnel construction and can be used as a reference for similar projects.