Abstract:This study presents a detailed investigation of surface deformation characteristics in a mining area in Gansu Province using Interferometric Synthetic Aperture Radar (InSAR) technology. Time-series deformation maps were generated by processing both ascending and descending orbit SAR data using the Small Baseline Subset (SBAS-InSAR) technique. The results reveal distinct patterns of both localized and regional deformation, characterized by rapid and gradual displacement rates. The analysis shows that localized deformation is directly correlated with mining progression, resulting in vertical displacement rates exceeding 20 cm/year (with maximum rates reaching 24 cm/year). Between 2020 and 2024, three distinct phases of rapid deformation were identified. Notably, areas with frequent mining-induced seismic events correspond to zones of maximum deformation. These findings provide valuable scientific evidence for geological hazard early warning, mining subsidence monitoring, and environmental protection in the mining region. The study demonstrates the effectiveness of InSAR technology in monitoring mining-induced ground deformation and its potential applications in mining safety management.