Investigation into Mechanism of Floor Dynamic Rupture by Evolution Characteristics of Stress and Mine Tremors: A Case Study in Guojiahe Coal Mine, China

Figure 14

The evolution characteristic of horizontal stress. Note: Figures (a), (b), and (c) are in static stage; Figures (d) and (e) are in dynamic stage.

(a)  s

(b)  s

(c)  s

(d)  s

(e)  s