基于激光雷达数据的隧道变形监测方法评估
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摘要
随着激光技术的不断发展,利用激光雷达数据进行隧道变形监测已成为当前研究的热点。为了探明现有方法在隧道变形监测中的适用性,对现有的几种主流点云数据变形监测方法进行了整理归纳,通过分析点云变化监测误差来源,提出一套实验方法,排除配准误差影响,在不同的变形距离和不同的点云密度下对比分析了各种方法在隧道变形监测中的表现并分析了精度和点云密度之间的关系。实验表明,在不考虑配准误差的情况下,基于剖面的变化监测方法效果较好。
With the continuous development of laser technology, tunnel deformation monitoring which use lidar data has become a hot topic in current research. In this paper, several main point cloud data change detection methods have been carried on the induction, to find out the applicability of the existing methods in the tunnel deformation monitoring, based on the analysis of error sources monitoring point cloud changes, a set of experimental method has been designed. An analysis with various methods in the tunnel change detection performance was made under different distances and different point cloud density, experimental results show that the profile based method is better without registration error.
With the continuous development of laser technology, tunnel deformation monitoring which use lidar data has become a hot topic in current research. In this paper, several main point cloud data change detection methods have been carried on the induction, to find out the applicability of the existing methods in the tunnel deformation monitoring, based on the analysis of error sources monitoring point cloud changes, a set of experimental method has been designed. An analysis with various methods in the tunnel change detection performance was made under different distances and different point cloud density, experimental results show that the profile based method is better without registration error.
引文
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[2]唐琨,戴鑫,黄祖登.基于三维激光扫描的隧道变形监测方法研究[J].地理空间信息, 2016(4):97-98
[3]李珵,卢小平,朱宁宁,等.基于激光点云的隧道断面连续提取与形变分析方法[J].测绘学报, 2015(9):1 056-1 062
[4]沙从术,潘洁晨.基于三维激光扫描技术的隧道收敛变形整体监测方法[J].城市轨道交通研究, 2014(10):51-54
[5]李健,万幼川,江梦华,等.基于地面激光技术的隧道变形监测技术[J].地理空间信息, 2012(1):14-17
[6]何桂珍,杨军.地铁隧道收敛变形监测方法的研究[J].现代隧道技术, 2016(3):105-110
[7]王举.基于激光扫描技术的水库大坝三维变形动态监测方法研究[D].郑州:郑州大学, 2015
[8]李宗平,张永涛,杨钊,等.三维激光扫描技术在隧道变形与断面监测中的应用研究[J].隧道建设, 2017(3):336-341
[9]刘绍堂,潘国荣.基于激光扫描的隧道变形监测的误差来源及变形分析[J].铁道工程学报, 2013(5):69-74