Abstract
Ground subsidence occurs continually due to underground coal mining in Yangquan, Shanxi and has had a serious impact on transmission lines. In this paper, the Differential Synthetic Aperture Radar Interferometry (DInSAR) method is applied to retrieve the deformation of mining area. In particular, orbit error and atmosphere delay have been corrected by combining a biquadratic model and a linear model. Seven Sentinel-1 images aquired from 15 December 2017 to 25 February 2018 to monitor Yangquan coal mining area. In this study, the deformation of the study area have been analyzed as well as the transmission power lines and their towers. Analysis results reveal the influence law of coal mining on transmission lines and provide useful information for the management and safe operation of transmission lines.
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