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Shock and Vibration
/
2021
/
Article
/
Fig 7
/
Research Article
Study on Optimization of Delay Method of Wedge Cut Blasting in Tunnel
Figure 7
The expansion and evolution process of the cut cavity: (a)
t
= 0.12 ms, (b)
t
= 0.72 ms, (c)
t
= 1.68 ms, and (d)
t
= 2.34 ms.
(a)
(b)
(c)
(d)