Stability Analysis of Surrounding Rock of Large Section Ultradeep Shaft Wall

Figure 8

Distribution of plastic zone of surrounding rock at different depth of shaft: (a) −930 m ∼ −972 m, (b) −972 m ∼ −1050 m, (c) −1050 m ∼ −1073 m, (d) −1073 m ∼ −1102 m, (e) −1102 m ∼ −1153 m, (f) −1153 m ∼ −1207 m, (g) −1207 m ∼ −1250 m, and (h) −1250 m ∼ −1271 m.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)