Study on the applicability of GNSS and synthetic aperture radar technology in mines under conditions of intense weathering and prolonged heavy rainy seasons
The southern regions are prone to mountain landslides,primarily due to loose soil and heavy rainfall,which adversely affect mining activities.Therefore,there is an urgent need for effective monitoring and warning measures.In recent years,synthetic aperture radar(InSAR)technology has rapidly developed and has been applied to replace GNSS for surface displacement monitoring of mine slopes.This study,using the Zhujiang cement limestone mine as an example,validates the applicability of GNSS and InSAR technology in monitoring mine slopes under conditions of intense weathering and prolonged heavy rainfall.Comparative analysis results show that both methods record consistent trends in slope displacement,providing crucial information for landslide evolu-tion.However,GNSS requires a denser local observation network for more accurate displacement assessment and landslide risk control.The application of InSAR technology in specific meteorological and geographical conditions requires certain levels of correction using specific processing tools.