1. Near-field frequency attenuation of vibrations from blasting using a full-field solution
- Author
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Pablo Segarra, José A. Sanchidrián, and S. Gómez
- Subjects
Physics ,Source function ,Acoustics ,Attenuation ,0211 other engineering and technologies ,Estimator ,Near and far field ,02 engineering and technology ,Vibration ,Environmental sciences ,Frequency domain ,Waveform ,GE1-350 ,Energy (signal processing) ,021101 geological & geomatics engineering ,021102 mining & metallurgy - Abstract
This study analyses the frequency content of vibrations from blasting in the near field using a vibration prediction model called full-field solution (FFS). For that purpose, the frequency content of recorded signals and synthetic waveforms obtained through the FFS using dominant and mean frequencies have been compared and correlated with the geometrical distance to the blastholes. The study shows that the model overestimates the dominant and mean frequencies in the entire frequency domain, which may require tailoring the source function to a lower frequency content. However, it attenuates the frequency content as distance increases. Additionally, the study shows that the mean frequencies may be used as a better estimator of the frequency content than the dominant frequencies.
- Published
- 2021