Analysis of Seismic Signatures from Gas and Dust Based Explosions at the Lake Lynn Experimental Mine

Details

• Personal Author:
  Murphy, M. M. ; Iannacchione, A. T. ; Westman, E. C. ; Chapman, M. C.
• Corporate Authors:
  National Institute for Occupational Safety and Health
• Description:
  Examination of seismic records during the time interval of the Sago Mine disaster in 2006 revealed a small amplitude signal possibly associated with an event in the mine. More needs to be understood about the seismicity from mine explosions in order to properly interpret critical seismic information. A seismic monitoring system located at NIOSH’s Lake Lynn Experimental Mine has monitored experimental gas and dust based explosions and impact tests. The seismic signatures from these different events were analyzed using standard waveform analysis procedures. The magnitude of seismic energy during a gas and dust explosion was found to be more dependent on mine entry geometry and seal behavior rather than on the amount of explosive fuel present. The results suggest a large explosion that’s not restricted can generate potentially the same magnitude as a small explosion that is restricted.
• Subjects:
  Mining
• Source:
  2008 SME Annual Meeting and Exhibit, February 24-27, Salt Lake City, Utah, Preprint 08-009. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2008 Feb; :1-7
• Document Type:
  Text
• Genre:
  Conference Publications
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• NIOSHTIC Number:
  nn:20033467
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:9dca6e3d01dfbbd06f2c63fc9d7b1e644696bfc4e54efc9130a96ff8ce05fecaf5e54d5008f9240e1ff7c0ca41a2b309dd33169dc60a9e75629a2a4c7c28c729
• Download URL:
  https://stacks.cdc.gov/view/cdc/8560/cdc_8560_DS1.pdf
• File Type:
  [PDF - 955.78 KB ]