基于机载激光雷达系统的露天矿土石方剥离量计算

Calculation of Earthwork Stripping in Open Pit Ore Based on Airborne Lidar System

土石方剥离量统计是矿山测绘工作的重要内容,其测绘准确性关系矿山的经济效益。传统的露天矿山的土石方剥离量统计方式依赖于人工通过RTK、全站仪设备进行测量,一方面难以完全采集矿区全貌,测量精度和效率难以保证;另一方面人员暴露在矿山生产作业区域,自身的人身安全受到威胁。为解决矿山测绘精度、效率以及安全问题,本文提供一种基于无人机载激光雷达技术,通过获取高精度激光点云数据,进而生产出高精度DEM数据,通过两期DEM数据叠加进行土石方剥离量计算。

The statistics of earthwork stripping is an important part of mine surveying and mapping,and its accuracy is related to the econom-ic benefit of mine.The traditional statistical method of earthwork stripping in open-pit mines depends on manual measurement through RTK and total station equipment.On the one hand,it is difficult to fully collect the whole picture of the mining area,and to ensure the measurement accuracy and ef-ficiency;on the other hand,personnel are exposed to the mine production area,and their own personal safety is threatened.In order to solve the prob-lems of mine mapping accuracy,efficiency and safety,this paper provides a method based on uav lidar technology to obtain high-precision laser point cloud data,then produce high-precision DEM data,and calculate the earthwork stripping by the superposition of two phases of DEM data.