Deformation Caused by Dynamic Load and Support Requirements in a Deep Gob-Side Entry Rock Mass

Figure 19

Curves of working resistance of bolts and cable anchors with increasing driving distance. (a) No. 1 bolt dynamometer at station #1, (b) No. 1 bolt dynamometer at station #2, (c) No. 1 bolt dynamometer at station #3, (d) No. 1 cable anchor dynamometer at station #2, and (e) No. 1 cable anchor dynamometer at station #3.

(a)

(b)

(c)

(d)

(e)