Mechanical Model of Underground Shaft Coal Pocket and Deformation of Silo Wall in Coal Mines

Figure 1

Simplified mechanical model of concrete shaft wall and surrounding rocks. (a) Damage site of the silo wall where “A” is the collapse area. (b) Comparison of the collapse area and integrated area [9]. (c) Simplified mechanics model of the silo wall. (d) Simplified mechanics model of the silo wall and surrounding rocks.

(a)

(b)

(c)

(d)