A multi-source remote sensing satellite view of the February 22nd Xinjing landslide in the mining area of Alxa left Banner, China.

Open-pit coal mine landslides are a common hazard, and a major mine landslide disaster occurred on February 22, 2023, at the Xinjing mine in Alxa Left Banner, China. In this study, multi-source remote sensing techniques, combined with actual environmental conditions, were used to conduct a preliminary investigation of the pre-deformation and driving factors of this mine landslide. Sentinel-1A radar remote sensing imagery was utilized to monitor the pre-deformation of the landslide disaster using time-series InSAR techniques. Based on the results of the field survey, it was found that the actual engineering slope angle exceeded the standard, emerging as the main factor triggering the landslide in the Xinjing mine. Additionally, high temporal and spatial resolution PlanetScope optical remote sensing imagery identified the infiltration of snowmelt into the rock mass as a potential factor increasing the susceptibility of the slope. [ABSTRACT FROM AUTHOR]