Abstract:Aiming at the problems that the existing technology cannot meet the fine demand of reserves dynamic monitoring, a UAV intelligent dynamic monitoring method for open-pit mine reserves is proposed by deeply integrating the digital twin technology and mine dynamic monitoring business. By integrating mine topographic, geological, design, UAV LiDAR, and photogrammetric multi-source heterogeneous data, this method automatically establishes the three-dimensional models of mine original terrain, current terrain, final boundary and ore body, and realizes the elaborate and automatic calculation of dynamic reserves within and beyond the boundary of each ore bed. The application results show that this method is feasible and reliable. Compared with the existing methods, this method can adapt to various situations such as complex geological structures, large topographic relief, and dense vegetation coverage, realize intelligent and fine dynamic monitoring of open-pit reserves and form an intuitive, accurate and comprehensive perception of mining dynamics.