Abstract:This article is based on the special project of visual safety monitoring for metal and non-metallic mines. 3D laser scanning technology is used to monitor the safety of the Miyi Wanniangou tailings pond. The reservoir area from January 2021 to December 2022 was scanned and monitored. The results show that the current length of the dry beach is 524.555 meters, the area of the Wanniangou tailings pond has increased by 145000 square meters, and the height of the accumulation dam has increased from 1579.249 meters to 1589.09 meters, with a total increase of 9.841 meters, The dam construction speed is 5.134m/a; Approximately 12.657 million cubic meters of newly added tailings， The stacking rate is 66036500m3/a； The total capacity of the tailings pond is relatively large, and the dam construction and discharge rates are fast. In order to prevent serious consequences caused by dam failure, three limit equilibrium methods were used. The calculation results show that the tailings pond is currently in a stable state.
