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

Figure 17

Stress characteristics of supporting structures in the staggered roadways position. (a) Roadway support layout model, (b) bearing condition of bolt and anchor cable active support structures in lower roadway, (c) bearing condition of bolt and anchor cable active support structure in upper roadway, and (d) bearing condition of U-shaped steel support in lower roadway.

(a)

(b)

(c)

(d)