摘要
修建好的隧道在外部载荷作用下,会产生形变,长期的形变积累可能造成严重的安全事故.通过隧道截面拟合可以得到隧道截面的几何参数从而对截面变形进行监测以防止事故的发生.对自行设计的新型监测车上的激光探头分布形式以及截面拟合的算法进行探讨并提出1种新型的剔除孤立点的算法.通过大量的仿真实验,表明所设计的激光探头的分布形式和新型剔除算法可以得到很高的拟合精度.
The long-term tunnel deformations may result in severe accidents under external loadings. Based on the sectional fitting, geometric parameters can be obtained for sectional deformation monitoring and accident avoidance. Specifically for this study, the laser detector distribution and sectional fitting algorithm are investigated into a newly-developed monitoring vehicle. Accordingly, a new algorithm is proposed to reject isolated points. Through extensive simulation experiments, it is found that the laser detector distribution and new rejection algorithm possess high fitting precision
出处
《中国工程机械学报》
2008年第4期484-488,共5页
Chinese Journal of Construction Machinery
关键词
隧道变形
激光探测
拟合算法
tunnel deformation
laser detector
sectional fitting algorithm
