Study on the Process and Mechanism of Slope Failure Induced by Mining under Open Pit Slope: A Case Study from Yanqianshan Iron Mine, China

Figure 15

Survey of geomorphological changes of the eastern slope of the Yanqianshan Iron Mine (December 2017). (a) 3D view from Google Earth (27/12/2017). (b) The location of the mining area, which is observed through the same viewing angle as that of the Google Earth image (December 2017). (c) Tension cracks north of the counterscarps. (d) Tension cracks near the large landslide head crown (August 2017). (e, f) The eastern boundary of the large landslide (August 2017, October 2017). (g) Counterscarps behind the northern boundary of the small landslide. (h) The large landslide (view east).