移动三维激光扫描技术在隧道结构监测中应用  

Application of mobile 3D laser scanning technology in tunnel structure monitoring

作　　者：张丽 丛晓明 赵生良 ZHANG Li;CONG Xiaoming;ZHAO Shengliang(Qinghai Geological Mapping and Geographic Information Institute,Xining 810012,China;New Technologies of Plateau Surveying Geographic Information Key Laboratory of Qinghai Province,Xining 810012,China)

机构地区：[1]青海省地质测绘地理信息院,青海西宁810012 [2]青海省高原测绘地理信息新技术重点实验室,青海西宁810012

出　　处：《测绘通报》2020年第8期153-156,共4页Bulletin of Surveying and Mapping

基　　金：国家科技支撑计划(2015BAK39B01);青海省重点研发与转化计划(2018-SF-138)。

摘　　要：我国地铁隧道监测主要以全站仪为主的传统测量,监测点有限,监测过程缓慢,难以全面反映隧道结构的变形。本文针对地铁隧道结构特点,提出了一种基于新型移动式三维激光测量技术的隧道结构监测方案。首先利用移动激光扫描获取高密度点云数据;然后通过自动识别提取隧道顶部的环片拼接缝,以此为基础结合点云数据提取各环片断面信息,对环片结构进行分析;最后利用综合数据管理平台对各类监测成果进行管理分析,实现隧道结构变化的科学管理。实际工程应用表明,该方案监测结果准确、成果分析与管理更加科学,满足隧道健康监测的需求。The monitoring of subway tunnels in China mainly uses the traditional measurement based on the total station.The monitoring points are limited and the monitoring process is slow.It is difficult to fully reflect the deformation of the tunnel structure.Aiming at the structural characteristics of subway tunnels,this paper proposes a tunnel structure monitoring scheme based on a new mobile 3 D laser measurement technology.Firstly,the mobile laser scanning is used to obtain high-density point cloud data,and then the ring stitching seams at the top of the tunnel are automatically identified and extracted.Based on the point cloud data,the ring segment surface information is extracted and the ring slice structure is analyzed.Finally,The comprehensive data management platform is used to conduct management analysis on various monitoring results to achieve scientific management of tunnel structure changes.The actual engineering application shows that the scheme’s monitoring results are accurate,the results analysis and management are more scientific,and it meets the needs of tunnel health monitoring.

关 键 词：隧道监测 全站仪 移动式三维激光 点云数据分析 数据综合管理平台 

分 类 号：P237[天文地球—摄影测量与遥感]