Stability Analysis of Support Anchor Bolt in the Process of Surrounding Rock Fracture Evolution

Figure 9

The results analysis of varying anchor length and prestress.

(a) 4 m-200 kN

(b) 5 m-200 kN

(c) 6 m-200 kN

(d) 4 m-500 kN

(e) 5 m-500 kN

(f) 6 m-500 kN

(g) 4 m-1000 kN

(h) 5 m-1000 kN

(i) 6 m-1000 kN

(j) 4 m-1500 kN

(k) 5 m-1500 kN

(l) 6 m-1500 kN

(m) 4 m-2000 kN

(n) 5 m-2000 kN

(o) 6 m-2000 kN