Research Article
Numerical Analysis of the Influence of Foundation Pit Blasting on a Nearby Metro Tunnel
Table 2
Vibration velocities and maximum charges of signal shots for different conditions.
| | Condition | Vibration velocity of tunnel (cm/s) | Vibration velocity of pit edge (cm/s) | Maximum charge of signal shot (kg) |
| | 1st condition | 5 | 105.154 | 3.814 | | 2nd condition | 10 | 210.309 | 12.961 | | 3rd condition | 15 | 315.463 | 26.508 | | 4th condition | 20 | 420.617 | 44.041 |
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