A Study of Fractal Deep-Hole Blasting and Its Induced Stress Behavior of Hard Roof Strata in Bayangaole Coal Mine, China

Figure 12

Location of monitoring points. (a) “Straight-line” blasting layout monitoring point location. (b) “Triangle-fractal” blasting layout monitoring point location. (c) “Deep-shallow-fractal” blasting layout monitoring point location.

(a)

(b)

(c)