Abstract
At present, there is relatively little research on the selection of reasonable time difference of digital detonators. When choosing delay time in engineering, it mainly depends on engineering experience and empirical formula, which lacks reasonable scientific basis. In this paper, based on a large number of experimental vibration monitoring data, through numerical simulation, the influence of blasting time difference on peak velocity, main vibration frequency and instantaneous energy of blasting vibration waveform is analyzed in detail, and the best time difference is determined comprehensively.
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