Microseismic data analysis of failure occurrence in a deep, western U.S. coal mine : a case study

Details

• Personal Author:
  Kneisley, Richard O.
• Corporate Authors:
  United States. Bureau of Mines
• Description:
  "Microseismic activity observed both in the laboratory and underground indicates that a quiet period, associated with the closure of existing fractures and strongly influenced by coal seam microstructure occurs prior to coal bumps. Field studies conclude that coal mine bumps occur against a background of this so-called microseismic calm. This Bureau of Mines report summarizes microseismic activity associated with face bumps and floor bursts in a deep, western U.S. coal mine. Results conclude that while bumps are often accompanied by panel-wide increases in microseismic activity, bumps are not only preceded by a localized decrease in activity, but occur within these quiet zones. The results of this study concluded that microseismic activity may be applicable to the global detection of potential bump-prone zones, but that future studies are necessary to confirm these findings and to improve the techniques for evaluating stress control effectiveness." - NIOSHTIC-2
  
  NIOSHTIC no. 10006817
  
  
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  Pacific States ; Southwestern States
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  16 numbered pages
• NIOSHTIC Number:
  nn:10006817
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:cb9e040947127e622f67f583dee171ba5331c4a0b84eac649dc9d0bed930dc0c6a0f225996c555e4c5a0a5cb0d60d16ffcd6c3cf5ea12310e6b31cda313d9372
• Download URL:
  https://stacks.cdc.gov/view/cdc/10601/cdc_10601_DS1.pdf
• File Type:
  [PDF - 552.39 KB ]