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公路隧道工程的监测环境复杂,监测对象受到时空限制和施工环境制约,基于传统的机电测试技术的监测方法,很难实现远程实时动态监测。结合张涿高速东马各庄隧道工程实时监测数据库,采用光纤传感技术对张涿高速东马各庄隧道实现了远程实时监测。通过对监测成果进行整理,得到不同级别围岩的变形量、变形稳定时间、变形速率,提高了围岩稳定性时间,对类似工程具有很大的指导意义。
The monitoring environment of highway tunnel engineering is complex. The monitoring object is restricted by space and time and the construction environment. Based on the traditional monitoring method of electromechanical testing technology, it is very difficult to realize the remote real-time dynamic monitoring. Combined with the real-time monitoring database of East Magezhuang tunnel in Zhangjiakou Expressway, the fiber-optic sensing technology was used to realize the remote real-time monitoring of the Zhangmangzhuang East Magezhuang Tunnel. By finishing the monitoring results, the deformation amount, deformation stability time and deformation rate of surrounding rock at different grades are obtained, and the stability time of surrounding rock is increased, which is of great guiding significance for similar projects.