Abstract:The high-intensity mining of coal resources has caused a series of geological environmental problems when promoting social and economic development. Comprehensive management and ecological restoration of coal mining subsidence areas urgently require the survey data of the mining area as the basic support. Rapid update of current data has put forward higher requirements on current measurement methods and working methods in terms of monitoring efficiency, economic cost and sustainability. Taking Xiaoyun mining area in Jining as an example, by using the time series InSAR technology, high-resolution RADARSAT-2XF model images in 15 periods from 2016 to 2018 have been Interpreted, and spatial and temporal deformation characteristics of Xiaoyun mining area have been obtained. Combining with the location of mining working face in different periods, monitoring results have been analyzed. It is showed that high-resolution time-series InSAR technology can effectively identify the signs of deformation caused by mining in the mining area, meet the monitoring requirements for accurate acquisition of subsidence information in the mining subsidence area, and provide a reliable technical method for acquisition of subsidence information in a wide range of mining and delineation of influence degree.
