Research on monitoring and identifying coal mine ground subsidence based on radar and optical remote sensing
To further analyze the more information of land subsidence caused by coal mining,the land subsidence problem in the con-centrated area of Hongguo Coal Mine in Yanbian as a research case was taken.Firstly,based on Sentinel-1A satellite image data and DEM elevation data,radar remote sensing technology was applied to monitor and identify the land subsidence characteristics of coal mines in the study area,clarifying the temporal and spatial distribution characteristics of land subsidence in the study area.Secondly,optical remote sensing technology was applied to interpret satellite images of coal mine ground subsidence monitoring,and the accuracy of coal mine ground subsidence monitoring recognition based on optical remote sensing was verified through statistical analysis methods.Finally,a survey and summary analysis were conducted on how the factors of mine development status,mine design scale,and mine land occupation type affect land subsidence.Based on the analysis results,relevant suggestions were proposed for subsequent land subsidence prevention and control measures.