Research on time series InSAR monitoring method for multiple types of surface deformation in mining area

Interferometric Synthetic Aperture Radar (InSAR) has become the primary remote sensing detection method for monitoring significant surface subsidence and deformation caused by underground coal mining. Time Series InSAR been intensively researched in mining-caused its ability to provide time series, with Small Baseline Subset (SBAS-InSAR) Permanent Scatter (PS-InSAR) being two classical methods. To obtain incline curvature mining areas assess building damage, this paper exploits SBAS-InSAR PS-InSAR techniques estimate curvature, following principle of directional derivatives. The beneath villages industrial square near 7221 Grout-filled working face Huaibei area Anhui Province, China, was analyzed. estimated were within threshold values specified Class I while showed <1% measurements that exceeded threshold. This provides a buildings mine area. Meanwhile, dynamic analysis damaged basis determining influence range grout-filled faces.