Study and Application of Rock Breaking Mechanism of Concentrated Water Hydraulic Smooth Blasting in Broken Sand-Stone Geological Conditions

Figure 5

Effect before and after experimental blasting. (a) Effect of group A before blasting. (b) Effect of group A after blasting. (c) Effect of group B before blasting. (d) Effect of group B after blasting.

(a)

(b)

(c)

(d)