Table 6 Calculation of blast distance at monitoring point (units: m).
From: Attenuation model of tunnel blast vibration velocity based on the influence of free surface
Serial No. | Full section model | Upper step model | Lower step model |
|---|---|---|---|
1 | 3.67383 | 12.4450 | 4.33225 |
2 | 7.61066 | 17.2504 | 7.94956 |
3 | 12.3228 | 22.1309 | 12.5349 |
4 | 17.1838 | 27.0459 | 17.3365 |
5 | 22.0956 | 31.9795 | 22.2146 |
6 | 27.0307 | 36.9244 | 27.1281 |
7 | 34.4549 | 44.3543 | 34.5314 |
8 | 41.8928 | 51.7936 | 41.9557 |
9 | – | 4.23935 | – |
10 | – | 7.86560 | – |
