Paper Title:
Application of Wavelet Packet Energy Spectrum in Coal-Rock Interface Recognition
  Abstract

The recognition of coal-rock interface in the top caving was investigated via the vibration signals of the tail beam of the hydraulic support. Wavelet packet transform was used to process the vibration signals. A newly feature based on wavelet packet energy spectrum was proposed to identify the coal-rock interface in top coal caving. The interface was determined by comparing the features in the two cases of coal dropping and rock dropping. The experimental results show that the energy proportion of vibration signal in high frequency bands when rock dropping is greater than that when coal dropping.

  Info
Periodical
Key Engineering Materials (Volumes 474-476)
Edited by
Garry Zhu
Pages
1103-1106
DOI
10.4028/www.scientific.net/KEM.474-476.1103
Citation
B. P. Wang, Z. C. Wang, Y. X. Li, "Application of Wavelet Packet Energy Spectrum in Coal-Rock Interface Recognition", Key Engineering Materials, Vols. 474-476, pp. 1103-1106, 2011
Online since
April 2011
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Price
$32.00
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