Research Article
Dynamic Response Characteristics of the Structures under Excavation by High-Efficiency Blasting in the Urban Ultradeep Foundation Pit
Table 2
The PPV and main frequency of the on-site monitored data.
| Position | Distance (m) | Group number | Horizontal radial (X) | Horizontal tangential (Y) | Vertical (Z) | PPV (cm/s) | Main frequency (Hz) | PPV (cm/s) | Main frequency (Hz) | PPV (cm/s) | Main frequency (Hz) |
| Residence | 35 | 1 | 0.169 | 21.27 | 0.182 | 13.69 | 0.033 | 10.63 | 2 | 0.201 | 0.203 | 0.041 | 3 | 0.196 | 0.164 | 0.032 | 4 | 0.210 | 0.171 | 0.035 |
| Supporting pile | 15 | 1 | 0.189 | 18.35 | 0.130 | 15.32 | 0.022 | 6.72 | 2 | 0.195 | 0.148 | 0.028 | 3 | 0.170 | 0.116 | 0.027 | 4 | 0.186 | 0.126 | 0.029 |
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