Full-Field Strain Characterizations and Fracture Process of Rock Blasting Using a Small-Scale Double-Hole Bench Model

Figure 9

The crack evolution for test 2 (the magnification of the enlarged part is 300%). (a) 150 μs. (b) 200 μs. (c) 250 μs. (d) 300 μs. (e) 350 μs. (f) 400 μs. (g) 450 μs. (h) 500 μs. (i) 550 μs. (j) 600 μs. (k) 650 μs. (l) 700 μs. (m) 750 μs. (n) 800 μs. (o) 850 μs. (p) 900 μs. (q) 950 μs. (r) 1000 μs. (s) 1200 μs. (t) 4000 μs.

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