三维激光扫描技术在矿山法隧道竣工测量中的应用

Application of 3D Laser Scanning Technology in Completion Survey of Mine Tunnel

三维激光扫描可以快速获取高密度的点云坐标和反射率数据,为隧道测量提供新的技术方法。结合贵阳市轨道交通L2竣工测量项目,详细研究三维激光扫描仪对矿山法隧道进行数据采集、点云拼接、内业画图等作业流程及方法。经过现场验证比对,新的技术方法可以满足竣工测量的精度要求,且点云数据可用于隧道的三维精细建模,为后续轨道交通运营维护提供基础数据。

3D laser scanning can quickly obtain high-density point cloud coordinates&reflectivity data,providing a new technical method for tunnel measurement.Combined with the completion survey project of Guiyang rail transit L2,the operation processes&methods of data acquisition,point cloud splicing,interior drawing,etc.of mining tunnel by 3D laser scanner are studied in detail.After on-site verification&comparison,the new technical method can meet the accuracy requirements of the completion survey,and the point cloud data can be used for the 3D fine modeling of the tunnel to provide basic data for the subsequent rail transit operation&maintenance.