Research Article
Effect of Shaft Pillar Extraction on Stability of Main Shaft: A Case Study at Xincheng Gold Mine, China
Figure 8
Cumulative displacement measured at 4 monitoring boreholes.
(a) M1 monitoring borehole |
(b) M2 monitoring borehole |
(c) M3 monitoring borehole |
(d) M4 monitoring borehole |