Abstract
Detection and extraction of mining-induced ground deformation can be used to understand the deformation process and space distribution and to estimate the deformation laws and trends. This study focuses on the application of ground deformation detection and extraction combined with digital surface model (DSM), derived from China’s ZiYuan-3 (ZY-3) satellite stereo imagery and the advanced spaceborne thermal emission and reflection radiometer global digital elevation model (ASTER GDEM) data. A district covering 200 km2 around the west open-pit mine in Fushun of Liaoning Province, a city located in Northeast China, is chosen as the study area. Regional overall deformation, typical region deformation, and topographical profile deformation are extracted to analyze the distribution and the link between the regional ground deformations. The results show that the mean elevation has already increased by 3.12 m from 2010 to 2015; 71.18% of this area is deformed, and 22.72% of this area has an elevation variation of more than 10 m. Four districts of rising elevation and three districts of descending elevation are extracted. They are deformed with distinct elevation and volume changes. The total area with distinct rising elevation (>15 m) is about 8.44 km2, and the change in volume is 2.47 × 108 m3. However, the total area with distinct descending elevation (<−10 m) is about 6.12 km2, and the change in volume is 2.01 × 108 m3. Moreover, the deformation in the local mining area has expanded to the surrounding areas. Experiments in the mining area demonstrate that ground deformation, especially acute deformation such as large fractures or landslides, can be monitored using DSMs derived from ZY-3 satellite stereo images.
Highlights
Detection and measurement of ground deformation associated with mining operations is an important for hazard management
Experiments in the mining area demonstrate that ground deformation, especially acute deformation such as large fractures or landslides, can be monitored using digital surface model (DSM) derived from ZY-3 satellite stereo images
We propose an extension and the potential of Chinese ZY-3 satellite stereo imagery for ground deformation detection and extraction in mining areas
Summary
Detection and measurement of ground deformation associated with mining operations is an important for hazard management. The deformation appears in various forms such as ground subsidence, collapse, slope sliding, and changes in the position of buildings and landscape [1,2,3]. It is known to continue after the termination of exploitation. Mining disturbances appear in the active mining areas and expand to surrounding areas gradually. Open-pit mining operations involve very large quantities of overburden removal, dumping, and backfilling in excavated areas [4]. Mining activities lead to substantial deformation and an increase in the rate of dump failures and open-pit slope failures. Continuous monitoring of ground deformation under careful scrutiny is necessary to predict and prevent the damages or disasters caused by ground deformation
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
