Surface Subsidence Monitoring Induced by Underground Coal Mining by Combining DInSAR and UAV Photogrammetry

Surface subsidence caused by coal mining has become an important factor that affects and restricts the sustainable development of districts. It is necessary to use appropriate methods for effective monitoring. hard monitor large gradient ground deformations with a high accuracy using differential interferometric synthetic aperture radar (DInSAR) technology. Unmanned aerial vehicle (UAV) photogrammetry limited in it monitors basin edge subtracting two DEMs (digital elevation models). Therefore, this paper we propose combination DInSAR UAV complement data advantages achieve high-precision monitoring areas. The panel 81,403 Yangquan mine was obtained technologies. fusion points were selected datasets agreement between leveling verified. results indicated technology could settlement more accurately than single or