组合式测点装置在龙泉山隧道施工监控中的应用

在隧道施工监控技术现状分析基础上，根据不同变形阶段对监测方法及精度要求，针对隧道分步开挖法，提出采用“隧道位移变形监测专用多功能组合式测点装置”开展隧道施工监控量测。介绍了组合式隧道监测新方法的原理及数据分析。通过龙泉山隧道工程监测实践表明:该监测方法解决了常规监测中分步开挖数据采集不连续的问题，监测精度满足规范要求。

Application of Combined Measuring Point Device to Longquanshan Tunnel Construction Monitoring

Based on both analysis on the status quo of monitoring technology for tunnel construction and requirements on monitoring method and accuracy in different deformation stages, ＂ multi-function combined measuring-point device for tunnel displacement deformation monitoring ＂, in connection with step-by-step excavation, is suggested to be used for monitoring measure of tunnel construction. The paper introduces the rationale and data analysis of the new combined method for tunnel monitoring and takes the monitoring at Longquanshan Tunnel as the example. The practice shows that this monitoring method finds the way out of the incontinuity of data acquisition in step-by-step excavation when normal monitoring and the monitoring accuracy meet the requirements of Specification.