激光扫描技术在输电线路工程监测中的应用

Application of Laser Scanning Technique in Transmission Line Monitoring

受周围环境的影响,输电线路在建设过程中的受力及反复热胀冷缩,导致导线弧垂发生变化,会与设计值存在一定偏差,因此在特殊工况下监测线路弧垂至关重要。为此采用三维激光扫描技术,获取研究区域输电线路的点云数据与三维地理空间信息,构建输电线路三维模型,通过数据分析提取线路空间坐标,计算输电线路对地或跨越物的安全距离。研究结果表明,三维激光扫描技术可实现输电线路的弧垂、空间的精确测量,测量精度可达0.001 m,有助于提高输电线路工程施工建设质量及安全管控水平,具有一定的推广应用前景。

Due to environmental factors,the stress and repeated thermal expansion and contraction of transmission lines during construction can cause changes in conductor sag,which often deviates from the design value.Therefore,monitoring line sag under special operating conditions is crucial.This study uses 3D laser scanning technology to obtain point cloud data and 3D geographic spatial information of the transmission lines in the research areas,construct a 3D model of the transmission lines,extract the spatial coordinates of the lines through data analysis,and calculate the safe distance of the transmission lines to the ground or crossing object.The research results indicate that 3D laser scanning technology can achieve accurate measurement of sag and space of transmission lines,with a measurement accuracy of up to 0.001 m,which helps to improve the construction quality and safety control level of transmission line engineering,and has broad prospects for promotion and application.