Research Article
Stress Distribution and Failure Characteristics of Stope Overburden of an Inclined Coal Seam
Figure 6
Three-dimensional surface diagram of vertical stress of surrounding rock of E9103 workface at different advancement distances.
(a) 40 m |
(b) 80 m |
(c) 120 m |
(d) 160 m |
(e) 200 m |
(f) 240 m |
(g) 280 m |
(h) 320 m |
(i) 360 m |
(j) 400 m |