Numerical Study on the Impact Instability Characteristics Induced by Mine Earthquake and the Support Scheme of Roadway

Figure 15

Crack distribution of roadway with different support schemes (red is the shear crack, blue is the tensile crack). (a) Scheme 1. (b) Scheme 2. (c) Scheme 3. (d) Scheme 4.

(a)

(b)

(c)

(d)