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

<div>Fractal graphics of “triangular-fractal” blasting layout.</div>

Advances in Civil Engineering

Figure 9: A Study of Fractal Deep-Hole Blasting and Its Induced Stress Behavior of Hard Roof Strata in Bayangaole Coal Mine, China 