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Shock and Vibration
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Shock and Vibration
/
2021
/
Article
/
Tab 8
/
Research Article
The Influence Mechanism of the Master Weak Interlayer on Bench Blasting Effect and Its Evaluation Method
Table 8
Calculation of
R
i
/
D
i
ratio.
Scheme
1
2
3
4
5
6
7
8
9
R
i
/
D
i
3.78
7.74
10.48
2.52
3.49
2.25
2.10
0.75
1.55
Ratio ranking
3
2
1
5
4
6
7
9
8
Effect ranking
2
1
1
4
3
5
6
8
7
