VIBRATION REDUCTION METHOD BASED ON BLAST VIBRATION PREDICTION TECHNOLOGY

摘要

A vibration reduction method based on a blast vibration prediction technology, comprising the following steps: S1: selecting a blast hole as a reference blasting hole in multiple holes of a blasting area; S2: selecting a plurality of measuring points on the periphery of the reference blasting hole, and arranging a vibration measuring instrument in the radial direction of the reference blasting hole and the measuring points; S3: collecting vibration data of the reference blasting hole and other blast holes, and recording blasting parameters; S4: analyzing the collected vibration data of the reference blasting hole by using Matlab software, inputting millisecond times of multi-hole blasting in n segments, and predicting a complete blasting vibration waveform of the measuring points and the maximum multi-hole blasting vibration speed; S5: using Matlab software to fit a relationship curve between different millisecond times and a particle maximum blasting vibration speed and a relationship curve between different millisecond times and a vibration reduction rate. According to the method, the change rule of a multi-hole blasting vibration waveform predicted by a single-hole blasting vibration waveform is basically consistent with that of an actually measured blasting vibration waveform, and compared with a conventional formula plus experience prediction method, the method is more effective and reliable.