摘要
Abstract
Leica P40 three-dimensional laser scanner was used to obtain the point cloud data of a bridge structure in a monitoring project of a cross-sea bridge.The three-dimensional measurement model was established,and the accuracy was compared with traditional measurement methods such as total station and level.The analysis shows that the point cloud data obtained by Leica P40 scanner has a±2 mm accuracy and 95%data integrity in the monitoring of bridge deflection and torsional deformation,which realizes the visual analysis of the whole structure de-formation.关键词
激光扫描/桥梁监测/变形测量/点云数据/精度分析Key words
Laser scanning/Bridge monitoring/Deformation measurement/Point cloud data/Precision analysis分类
交通工程
