The maximum vibration speed occurs at the radial direction of tunnel wall facing the blasting side, which can be regarded as the controlling vibration speed.
最大振动速度出现在迎爆侧边墙测点的径向方向，可将其作为爆破振动的控制速度；
The maximum vibration speed occurs at the radial direction of tunnel wall facing the blasting side, which can be regarded as the controlling vibration speed.
最大振动速度出现在迎爆侧边墙测点的径向方向，可将其作为爆破振动的控制速度；
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