Skip directly to local search Skip directly to A to Z list Skip directly to navigation Skip directly to site content Skip directly to page options
CDC Home

Mining Topic: Ground Monitoring

Gound monitoring.

Gound monitoring

What is the health and safety problem?

Observing and monitoring rock deformations can provide information for making critical safety decisions. Generally, underground mines use observational techniques to determine roof stability which are not very efficient or accurate. Mine workers have "sounded" the rock - striking it and listening for the “drummy sounds” that signal loose rock. Other techniques include microseismic monitoring, mechanical measurement, load cells, or electromechanical roof monitors.

What is the extent of the problem?

According to Mine Safety and Health Administration (MSHA) statistics (2003-2012), falls of ground were responsible for the largest portion (27%) of fatal incidents in the coal mining industry and about 33% of fatal incidents in underground coal mining.

How is OMSHR addressing this problem?

The Office of Mine Safety and Health Research (OMSHR) is developing and applying ground monitoring methods in a variety of mines with a current focus on monitoring ground in deep coal mines. Roof monitors can provide information related to roof rock stability where geologic discontinuities or weaknesses exist in the mine roof. Over time, monitoring provides the operator with a history of the stability of the mine opening, allowing for the installation of additional support where needed or the removal of personnel and equipment from potentially hazardous situations.

What are the significant findings?

OMSHR has been involved in the research and development of several significant ground monitoring systems. Most recently, OMSHR research has led to a permissible miniaturized data logging system that is now licensed for commercial production and a seismic monitoring system in deep coal mines.

What are the next steps?

Ongoing work is focusing on monitoring the ground response to the mining of coal at depth including ground pressures, displacements, and seismicity.

Noteworthy Publications & Products

 
Contact Us:
  • Office of Mine Safety and Health (OMSHR)
  • National Institute for Occupational Safety and Health (NIOSH)
  • Centers for Disease Control and Prevention
  • 800-CDC-INFO
    (800-232-4636)
    TTY: (888) 232-6348
  • New Hours of Operation
    8am-8pm ET/Monday-Friday
    Closed Holidays
  • omshr@cdc.gov
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Road Atlanta, GA 30329-4027, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO
A-Z Index
  1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z
  27. #