Welcome to CDC stacks |
Stacks Logo
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.
 
 
Help
Clear All Simple Search
Advanced Search
Microseismic Activity Associated With A Deep Longwall Coal Mine
  • Published Date:
    0/1/1900
Filetype[PDF-443.82 KB]


Details:
  • Personal Author:
  • Description:
    A deep longwall coal mine was instrumented with a three-dimensional microseismic system in order to help determine the exact strata mechanics associated with the rock failure, redistribution of stress and the associated gob formation from the longwall. Overall, 5,000 well calibrated seismic events were recorded during the mining of the panel. Analysis of these events showed a close correlation between the seismic activity and advance rate, and that the majority of the recorded seismic activity occurs in the immediate area of the advancing longwall face.

  • Subject:
  • Collection(s):
    National Institute for Occupational Safety and Health
  • Main Document Checksum:
  • Supporting Files:
    No Additional Files
No Related Documents.
You May Also Like:
  1. Microseismic data analysis of failure occurrence in a deep, western U.S. coal mine : a case study
    Personal Author:
    Kneisley, R. O. (Richard O.)
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    1989
    Series:
    Report of investigations (United States. Bureau of Mines) ; 9228
    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 conc...
    File Type:
    Filetype[PDF - 552.39 KB]
  2. Seismic monitoring strategies for deep longwall coal mines
    Personal Author:
    Swanson, Peter; Boltz, M. Shawn; Chambers, Derrick;
    Corporate Authors:
    National Institute for Occupational Safety and Health. Office of Mine Safety and Health Research.
    Published Date:
    October 2016
    Series:
    Report of investigations (National Institute for Occupational Safety and Health) ; 9700
    DHHS publication ; no. (NIOSH) 2017-102
    Description:
    This report presents five strategies for detecting and recording seismic activity associated with deep longwall coal mining: 1. Single-station monitoring 2. Augmentation of an existing regional seismic network 3. Temporary network deployment 4. Imple...
    File Type:
    Filetype[PDF - 8.24 MB]
  3. An Analysis Of Rock Failure Around A Deep Longwall Using Microseismics
    Personal Author:
    Heasley, Keith A.; Ellenberger, John L.; Jeran, Paul W.;
    Published Date:
    0/1/1900
    Description:
    In this paper, a state-of-the-art, three-dimensional, full waveform, microseismic system was used to analyze the rock failure around a deep (> 750 m (2500 ft) of cover) bump-prone longwall panel. The microseismic system consisted of both underground ...
    File Type:
    Filetype[PDF - 441.90 KB]
  4. Three Dimensional Microseismic Monitoring of a Utah Longwall
    Personal Author:
    Ellenberger, J. L.; Heasley, K. A.; Swanson, P. L.; Mercier, J.;
    Published Date:
    1/1/2002
    Description:
    The National Institute for Occupational Safety and Health (NIOSH) has continued the research role of the former US Bureau of Mines (USBM) to engineer techniques that will reduce the hazards in the mining workplace associated with coal bumps. Recent r...
    File Type:
    Filetype[PDF - 179.47 KB]
  5. Proceedings : mechanics and mitigation of violent failure in coal and hard-rock mines
    Personal Author:
    Maleki, Hamid N.
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    May 1995
    Series:
    Special publication (United States. Bureau of Mines) ; SP 95-01
    Description:
    Papers presented at a U.S. Bureau of Mines (USBM) technology transfer seminar describe the causes of violent material failure in U.S. mines, measurement techniques for monitoring events that result in violent failure, and mitigation techniques for co...
    File Type:
    Filetype[PDF - 23.73 MB]