E3S Web Conf.
Volume 266, 2021Topical Issues of Rational Use of Natural Resources 2021
|Number of page(s)||12|
|Section||Geological Mapping, Exploration, and Prospecting of Mineral Resources|
|Published online||04 June 2021|
Near-field frequency attenuation of vibrations from blasting using a full-field solution
Universidad Politécnica de Madrid– ETSI Minas y Energía, Madrid, Spain
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.
© The Authors, published by EDP Sciences, 2021
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