Research Article
Research on the Influence of Slurry Filling on the Stability of Floor Coal Pillars during Mining above the Room-and-Pillar Goaf: A Case Study
Figure 9
The elastoplastic expansion and the amount of the horizontal bulge of each coal pillar with a filling body height of 4 m.
(a) Advancing distance 80 m |
(b) Advancing distance 120 m |
(c) Advancing distance 160 m |
(d) Advancing distance 200 m |
(e) Advancing distance 240 m |
(f) Advancing distance 280 m |
(g) Advancing distance 320 m |