Integrating of SAR, High Resolution Remote Sensing Imagery and GPS for Monitoring Disasters in Mining Surface Areas ----The Core Engineering of Digital Mine

摘要

Now detection and monitoring of mining geological disasters and environment is one of the most important tasks in mining area in China. The detection and monitoring of the mine surface disasters will be of great benefit to the reasonable development of mineral resources, and help to protect mine ecological environment, and realize the safety mining, mine ecology restoration and reconstruction. The goal of monitoring mine surface disasters, such as, subsidence, landslide, stability of building and structure building is that we use SAR, multi-phases and high-resolution remote sensing imagery and GPS to establish real-time monitoring system forecasting the disasters, to perform comparison analysis, interpret typical features of mining surface disasters, and analyze the law of transition and destruction of disasters, and provide instructional data, reports and atlas for safety mining and protection ecology environment. We also use GPS GCP for RS imagery alignment and getting precision coordinates of boundary points of the disasters features. For high resolution images, the RPC models and GPS GCPs are used for getting precision ortho-images. For Envisat SAR imagery, GPS GCPs used for getting referenced SAR imagery and check points. The basic law of transition and destruction of mine surface disasters has been concluded by contrasting with the interpretation results of multi-phases remote sensing images and deformation fields by D-INSAR results. GPS and surveying GeoRobot station is also used as for real-time and constant accuracy monitoring station in key points of mining surface. All data are automatic processed and analyzed. The automatic monitoring system is constructed by GPS reference station system, surveying GeoRobot station and temperature and pressure sensor. Automatic monitoring system has been used for successes disaster forecasting of landslide and subsidence in opencast mine. The Key integrating technology of RS, GIS and GPS, the technology of surveying sensor integrating and database management based XML, data visualization analysis based GIS and D-INSAR data processed for mine deformation fields has been solved in project and used in practice mine surface disasters monitoring.