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 7

Evolution law of the elastic-plastic property and the amount heave of the left and right side of the coal pillar under different advancing distances of the no. 6107 working face.

(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

(h) Proportion of the elastic core area of each coal pillar

(i) Heave of the left and right side of the coal pillar