摘要
随着新奥法(NATM)在隧道施工中的广泛运用,现场监控量测作为新奥法的灵魂也越来越受到广泛的重视,其中拱顶下沉量测是隧道监控量测的必测项目之一,随着大断面隧道和城市地铁、轻轨等隧道的增多,对于其控制值的监测精度要求逐渐提高,平板测微器的使用有效地提高了其监测精度,然而在实际操作应用中对隧道拱顶下沉的测微器读数计算方法不同,且监测值精度不高。本文就平板测微器结合钢卷尺的方法进行分析及讨论。
With the extensive use of the New Austrian Tunneling Method （NATM） in tunnel construction, scene monitoring has been widely appreciated. Crown settlement measurement was one of the projects must be measured in tunnel monitoring. With the rapid development of large cross-section tunnel, subway and light rail tunnel, the accuracy requirements for the monitoring was raising. Using plate micrometer can greatly increase the measurement accuracy, but different reading calculation methods were existed and the monitoring accuracy can not meet the requirement. The application of plate micrometer with steel tape measurement method in tunnel monitoring has been analyzed and discussed in this paper.
出处
《科技视界》
2013年第10期85-86,共2页
Science & Technology Vision
关键词
平板测微器
钢卷尺
监测精度
Plate micrometer
Steel tape
Monitoring accuracy
