无人机LiDAR技术在矿区大坝监测中的应用研究

Research on application of UAV LiDAR technology in dam monitoring in mining area

大坝作为我国防洪、发电和灌溉的重要设施,需要采取有效的手段对大坝进行监测。传统的监测手段存在很多局限性,不能有效的监测大坝的变形情况。文中以实际工程为例,采用无人机Li-DAR技术对大坝进行扫描,获得高精度的大坝三维模型和高差模型。对点云数据进行内符合精度分析,并将监测结果与常规方法所测数据进行对比,分析表明点云数据的内符合精度以及绝对精度均满足相关规范和设计要求。

As an important facility for flood defense,power generation and irrigation,dams need to be monitored by the effective means.Traditional monitoring methods had many limitations and couldn’t monitor effectively the deformation of the dam.In this paper,taking the actual project as an example,UAV LiDAR technology was used to scan the dam to obtain the high-precision 3D model and height difference model of the dam.Internal coincidence accuracy of the point cloud data was analyzed,and the monitoring results were compared with the data measured by the conventional methods.Analysis showed that the internal coincidence accuracy and the absolute accuracy of the point cloud data met the requirements of the relevant specifications and designs.