Study on Energy Distribution of Single-Hole Blasting Vibration Signal Based on Wavelet Packet Transform

Abstract:

It is conducive to reducedamage of blasting vibration to realize energy distribution and attenuation lawof single-hole blasting vibration signal. With the measured single-holeblasting vibration velocity curves, used wavelet packet analysis technologywith high-resolution character, the law of energy distribution of single-holeblasting vibration signals in different frequency bands, and the effect ofblasting source and distance from the source on single-hole blasting vibrationsignal energy distribution were analysised. The results show that the energy ofsingle-hole blasting vibration signals attenuation very quickly in thefrequency domain concentration distribution in 0~100Hz; and distance from thesource has significant influence on energy distribution in the frequencydomain; The energy is mainly distributed in the low frequency band whendistance from the source is larger, which has guiding significance inmitigation of blast-induced vibrations.

• Periodical: Applied Mechanics and Materials (Volumes 321-324)
• Pages: 1284-1289
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.321-324.1284
• Online since: June 2013
• Authors: Dong Tao Li, Li Xin Xu, Yuan Yuan Sun, Qiu Rui Jia, Jing Long Yan
• Keywords: Band Energy, Blasting Vibration, Energy Distribution, Single-Hole Blasting, Wavelet Packet

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