Damage Evolution and Circumferential Strain Distribution Characteristics of the Bolt-Supported Cavern under Multiple Explosion Sources

Figure 6

The damage evolution process of the underground cavern under the top explosion. (a) (t) = 0.3 ms. (b) (t) = 0.4 ms. (c) (t) = 0.6 ms. (d) (t) = 0.7 ms. (e) (t) = 0.8 ms. (f) (t) = 1.0 ms. (g) (t) = 1.6 ms. (h) (t) = 2.2 ms.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)