Study on the Migration Law of Overlying Rock in the Upward Layered Continuous Mining Face of Thick Coal Seam with Paste Backfill Mining

Figure 13

Plot of the plastic zone of elastic modulus of different filling bodies. (a) The elastic modulus of the filling body is 0.2 GPa. (b) The elastic modulus of the filling body is 0.4 GPa. (c) The elastic modulus of the filling body is 0.6 GPa. (d) The elastic modulus of the filling body is 0.8 GPa. (e) The elastic modulus of the filling body is 1.0 GPa.

(a)

(b)

(c)

(d)

(e)