Monitoring and inversion on land subsidence over mining area with InSAR technique

International Symposium on Lidar and Radar Mapping 2011: Technologies and Applications, Nanjing, 26-29 May 2011The Wulanmulun town, located in Inner Mongolia, is one of the main mining areas of Shendong Company such as Shangwan coal mine and Bulianta coal mine, which has been suffering serious mine collapse with the underground mine withdrawal. We use ALOS/PALSAR data to extract land deformation under these regions, in which Small Baseline Subsets (SBAS) method was applied. Then we compared InSAR results with the underground mining activities, and found high correlations between them. Lastly we applied Distributed Dislocation (Okada) model to invert the mine collapse mechanism.Department of Land Surveying and Geo-Informatic