Analysis on Spatial Disturbance Influence of Surrounding Rock Stress in the Staggered Roadways and Its Control Countermeasures

Figure 6

Disturbance influence of horizontal azimuth angle on surrounding rock vertical stress of staggered roadways. (a) 90° horizontal azimuth angle of staggered roadways, (b) 60° horizontal azimuth angle of staggered roadways, and (c) 30° horizontal azimuth angle of staggered roadways.

(a)

(b)

(c)