机载激光雷达数据在山区输电线路工程中的应用

Application of Airborne Lidar Data to Transmission Lines in Mountainous Areas

目前机载激光雷达数据具有高精度、高分辨率、点云密度大以及方便可视化处理等优点,逐渐应用于基础测绘、三维建模、林木调查以及电力勘测等领域。为了论证机载激光雷达数据在山区输电线路工程中的优势,满足输电线路工程勘测基本要求,本文结合青海—河南±800 kV特高压直流输电线路工程(11标段),从路径优化、定位、平断面绘制等角度,阐述了机载激光雷达数据在山区输电工程中的具体应用,并将机载激光雷达数据与实测数据对比。结果表明:机载激光雷达数据在山区输电线路工程中应用广泛且测量精度较高,能够满足输电线路工程设计要求,可以极大提高外业勘测效率。

At present,the airborne lidar data has been widely used in basic surveying,3D modeling,forest investigation and electric power survey due to its high precision,high resolution,high point cloud density and easy visualization.In order to demonstrate the advantages of airborne lidar data in mountainous transmission line engineering and meet the basic requirements of transmission line engineering survey,this paper expounds the presence of airborne lidar data in mountainous area from the aspects of route optimization,location and cross-section survey,combining with Qinghai-Henan(±800 kV)UHVDC transmission line engineering(package 11).Comparing the airborne lidar data with the measured data,the results show that the airborne lidar data is widely used in mountainous areas with high measurement accuracy,which can meet the requirements of transmission line engineering design and greatly improve the efficiency of field survey.