Application Research on Subsidence Monitoring of Mining Faces in Mining Areas Based on Oblique Photogrammetry
In this paper,UAV oblique photogrammetry technology is used to monitor the surface subsidence of mining faces of Shuang-mawo aluminum and iron mine in Mag township,Qingzhen city,Guizhou province,and the acquired aerial photography images in dif-ferent periods are analyzed and processed to generate DEM rendering data results.The DEM difference results are obtained by super-position analysis of multi-period DEM data.,intuitively display the surface subsidence and deformation information of mining faces in different periods;in order to check the accuracy of the results of oblique photography monitoring,the second-class leveling method is used to check the data of oblique photography monitoring,which verifies the reliability of this technical method in monitoring the sub-sidence of mining faces in a large mining area,makes up for the shortcomings of traditional monitoring methods,and greatly improves the monitoring efficiency.