Research to Blasting Vibration Distribution of an Open Pit Mine Based On Wavelet Packet Theory
As mining production developing, the deformation is gradually increasing in the northwest side of the surface mine. The blasting vibration of daily production is influence on the slope. Through decomposing, restructuring and analyzing the blasting vibration signals of different elevations and explosion distances, we got that the seismic wave energy was mainly distributed low frequency range, usually less in 20Hz and that with the explosion distance increasing, the high-frequency signal energy would be lost, especially when low-frequency signal energy below 10Hz low-frequency become into the main part of the energy. As explosion (center) distance increases, the signal energy is concentrated in the low frequency. Whereas, with the elevation increasing, the seismic wave energy will move to high frequency and has a homogenizing tendency; the percentage of the low frequency energy will be decreased relatively.
Blasting vibration signal wavelet packet theory energy feature open pit
Yang Yi Sun Wei Li Shufen
Land resources engineering institute, Kunming University of Science and Technology, KunMing,650093, School of Civil and Environment Engineering, University of Science and Technology Beijing, Beijing 1
国际会议
合肥
英文
1547-1555
2011-09-23（万方平台首次上网日期，不代表论文的发表时间）