无人机激光雷达矿山开采沉陷监测研究  

Mining subsidence monitoring based on UAV-LiDAR

作　　者：尹宏昌 田丰 马海博 薛博 YIN Hongchang;TIAN Feng;MA Haibo;XUE Bo(Inner Mongolia Yinhong Energy Development Co.,Ltd.,Ordos 017000,China;National Institute of Engineering and Technology for Coal Mining,Huainan 232000,China)

机构地区：[1]内蒙古银宏能源开发有限公司,内蒙古鄂尔多斯017000 [2]煤炭开采国家工程技术研究院,安徽淮南232000

出　　处：《煤炭工程》2023年第8期130-136,共7页Coal Engineering

基　　金：国家重点研发计划项目(2016YFC0501105);安徽省自然资源厅公益性项目(2021-g-1-7)。

摘　　要：为了快速、准确、全面监测煤矿高强度大规模开采引起的地表沉陷,以鄂尔多斯王家塔煤矿为例,采用无人机激光雷达(UAV-LiDAR)测量技术对该矿高强度开采地表沉陷进行监测,给出了数据获取及处理的关键技术及方法;通过对实测点云进行克里金插值得到地面点并建立地表DEM,多期DEM差分处理得到地表下沉盆地,联合中值滤波和双边滤波对下沉盆地进行去噪处理,最终得到高精度的下沉值。结果表明:该技术实测地表DEM精度为15 mm,求出地表沉陷盆地模型中误差为36 mm;可以快速获得丰富的地表数据,得到高精度的地表沉陷盆地信息。In order to quickly,accurately and comprehensively monitor the surface subsidence and environmental damage caused by high-intensity large-scale mining,taking Wangjiata Coal Mine in Ordos as an example,UAV-LiDAR measurement was used to monitor the surface subsidence,and the key technical process of UAV-LiDAR monitoring was given.Ground points were obtained by Kriging interpolation on the measured point clouds and surface DEM was established.The surface subsidence basin was obtained by multi-stage DEM differential processing.The combined median filter and bilateral filter were used to denoise the subsidence basin,and finally the high-precision subsidence value was obtained.The accuracy of surface DEM measured by UAV-LIDAR is 15 mm,and the error of surface subsidence basin model is 36 mm.UAV-LiDAR technology can quickly obtain rich surface data and obtain high-precision surface subsidence basin information.

关 键 词：矿区生态监测 地表沉陷 无人机测量 激光雷达 DEM 滤波 

分 类 号：TD327[矿业工程—矿井建设]