Study of monitoring mining subsidence in coal mining area by D-InSAR technology

Along with the increasing demand for coal and the great importance attached to mine safety, gaining the information of mine surface distortion timely has already become an urgent need to guarantee the safety of mine production. D-InSAR technology is a new measure which can provide the information of surface distortion in mining areas at centimeter level through the processing of SAR image gained from radar satellite. In addition, this technology has the advantage of monitoring large areas with no weather limit. Introduced the basic principle and data processing steps of D-InSAR systematically and acquired the differential interferometry based on case study data. The advantages of D-InSAR and it’s usability in monitoring mining subsidence in coal mining areas were proved.