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 6

Initial stability of coal pillars below the no. 6107 working face before mining: (a) elastic-plastic regional distribution of the no. 4 coal pillar; (b) heave of the left and right side of the no. 4 coal pillar; (c) proportion of elastic core areas of each coal pillar.

(a)

(b)

(c)