A Case Study of Optimization and Application of Soft-Rock Roadway Support in Xiaokang Coal Mine, China

Figure 12

Parameter optimization of the anchor bolt and cable. (a) The space of the anchor bolt; (b) the pretightening force of the anchor bolt; (c) the length of the anchor bolt; (d) the pretightening force of the anchor cable; (e) the length of the anchor cable; (f) matching of bolts and cables.

(a)

(b)

(c)

(d)

(e)

(f)