三维激光扫描技术在隧道竣工测量中的应用

Application of 3D Laser Scanning Technology in As-made Survey of Tunnel Lining Construction

传统的隧道断面测量方法一般是采用全站仪或断面仪间隔一定距离测量若干点来描述断面的形状,但受采集手段的限制,存在采集速度慢、采集点数据量少、不能全面反映隧道真实情况等缺陷。将激光扫描仪技术应用于隧道竣工测量,自动化程度高、数据采集速度快,可大大提高隧道检测数据采集的速度和精度,并能提供详尽的三维真实影像模型,直观反映隧道内部情况,在以色列红线项目的实际应用中取得了良好效果。

Traditional survey methods usually use total station or cross-section meter to measure a number of points at a certain distance to describe the shape of the cross-section.Due to the limitation of acquisition method,there are some shortcomings such as slow acquisition speed,small amount of acquisition points,and inability to fully reflect the real situation of the tunnel.With the development and progress of laser scanner technology in recent years,it has the advantages of high data accuracy and fast acquisition speed in fine 3D data modeling,and has been gradually applied to many fields of engineering survey.Using the laser scanner technology in tunnel as-made survey has high automation and fast data acquisition speed,which can greatly improve the speed and accuracy of tunnel detection data acquisition,provide detailed 3D real image model to visually reflect the internal situation of the tunnel,and have achieved good results in the actual application of Israel red line project.