摘要
变形监测在隧道施工中起着重要作用,根据与欧美国家测量员一道工作的经验介绍了在隧道施工期间变形监测基准点、工作基点和变形测点的选择方法,描述了隧道拱顶下沉监测方法,讨论了隧道收敛监测技术,同时分析了观测精度和监测周期问题。研究表明,利用现代测绘仪器和所述监测方法,能够快速准确地完成隧道施工期间的拱顶下沉和隧道收敛监测工作。该方法对隧道施工测量工作具有理论和实践参考价值。
Deformation monitoring plays an important role in the tunnel construction projects. In this paper, the choice of datum and deformation points is introduced, the design of monitoring network is discussed, the technique of tunnels＇ crown settlement monitoring and convergence monitoring is described and the accuracy and frequency of observation are analyzed. The data processing method and the quality evaluating method based on the measured data are studied. It is put forward that the monitoring job during the construction of tunnels can be done with modern surveying instruments. It is also concluded that the job will have significant value to the same kind of projects .
出处
《地下空间与工程学报》
CSCD
2006年第B08期1346-1348,1359,共4页
Chinese Journal of Underground Space and Engineering
关键词
工程测量
隧道施工测量
拱顶下沉监测
隧道收敛监测
engineering measurements
tunnel survey
crown settlement monitoring
convergence monitoring
