Deformation monitoring and analysis of Kunyang phosphate mine fusion with InSAR and GPS measurements

In order to prevent landslide and collapse in the mining area, it is essential not only gain a full understanding of surface deformation information about open-pit area surrounding dumps, but also closely monitor development deformation. Small baseline set (SBAS) technology can be applied extract high-resolution spatial-temporal from areas. Due decoherence, however, difficult obtain effective on some areas where results are monitored. This paper proposes kriging interpolation method that performs better filling missing values InSAR monitored by integrating GPS measured data with data. experimental process, 69 Sentinel-1 image were collected July 2018 November 2020. The SBAS-InSAR was caused Kunyang phosphate dumping sites. It found out all across Phosphorus Mine dumps suffered severe deformation, maximum line sight (LOS) rate ?132 mm/yr located dump north second area. verification result shows measurement consistent estimated measurements. root mean square error most points maintained within ±10 mm. Kriging fusion good agreement results. errors at 4 ±6.2 mm, ±4.6 ±6.4 ±7.8 proposed this incoherent mine monitoring high reliability. serve as scientific basis for prevention control landslides, collapses other hidden risks geological disasters posed operations conducted Mine.