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本文根据13次近场小药量予爆试验的实测资料,给出了估算爆破地震动最大加速度和最大速度的经验公式,计算了几个典型速度记录的富氏谱。文中简要叙述了予爆试验的实施方案和观测方法,着重分析了爆破地震的幅值、频谱和持续时间等地面运动特性及其影响因素。最后,对爆破模拟地震的可能性也作了初步讨论。
In this paper, based on the measured data of 13 near-field small-dose pre-explosion tests, the empirical formula for estimating the maximum acceleration and maximum velocity of blasting ground motion is given, and the Fusch spectrum of several typical velocity records is calculated. In this paper, the implementation plan and observation method of pre-blasting test are briefly described, and the ground motion characteristics such as amplitude, frequency spectrum and duration of blasting earthquake and their influencing factors are emphatically analyzed. Finally, the possibility of blasting simulated earthquakes is also discussed.