Research on Cumulative Damage Characteristics of Rock Anchor Beam Concrete Supporting Structure by Blasting Vibration of Underground Powerhouse

Figure 8

Cumulative damage nephogram of surrounding rock and rock anchor beam concrete under blasting. (a) 3.1 ms, (b) 6.1 ms, (c) 9.1 ms, (d) 12.1 ms, and (e) 15.0 ms.

(a)

(b)

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(e)