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Mining Publication: Geophysical Methods to Detect Stress in Underground Mines
Keywords: Ground falls Idaho Stopes
Original creation date: March 2004
Authors: DF Scott, TJ Williams, DR Tesarik, DK Denton, SJ Knoll, J Jordan
Report of Investigations - March 2004
Download PDF Document (5.61 MB)
NIOSHTIC2 Number: 20024630
U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2004-133, Report of Investigations 9661, 2004 Mar :1-18
Highly stressed rock in stopes continues to be a primary safety risk for miners in underground mines because this condition can result in failures of ground that lead to both injuries and death. Personnel from the Spokane Research Laboratory of the National Institute for Occupational Safety and Health studied two methods for identifying stress in rock. A seismic tomographic survey, finite-difference analysis, laboratory measurements of compression wave (ultrasonic) velocities in rock cores, and site geology were integrated to evaluate the use of seismic tomography for identifying induced pressures in an underground pillar at the Edgar Mine, Idaho Springs, Colorado. Electromagnetic (EM) emissions were also investigated in the Galena Mine, a deep underground mine in Idaho, in an effort to determine if these emissions could be used as indicators of impending catastrophic ground failure. Results of this research indicated that (1) seismic tomography appears to be a useful tool for determining relative stress in underground pillars, while (2) EM emissions do not appear to be significant precursors of impending catastrophic ground failure.
Image of publication Geophysical Methods to Detect Stress in Underground MinesReport of Investigations - March 2004
Download PDF Document (5.61 MB)
NIOSHTIC2 Number: 20024630
U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2004-133, Report of Investigations 9661, 2004 Mar :1-18
See Also
60 Years of Rockbursting in the Coeur D'Alene District of Northern Idaho, USA: Lessons Learned and Remaining Issues
Damage Delineation in Structures Using Laser Vibrometry and Remote Excitation
Developments in Sealant Support Systems for Ground Control
Horizontal Stress
In Situ Stress at the Lucky Friday Mine (In Four Parts): 2. Analysis of Overcore Measurement From 5300 Level
Investigation of a Rock-Burst Site, Sunshine Mine, Kellogg, Idaho
New Tricks for an Old Elephant: Revising Concepts of Coeur d'Alene Geology
Numerical Modeling of Paste Sills in Underhand Cut & Fill Stopes
Rock Mechanics Investigations at the Lucky Friday Mine (In Three Parts): 2. Evaluation of Underhand Backfill Practice for Rock Burst Control
Technology News 436 - Stope Leaching Reduces Surface Environmental Impacts From Underground Mining
Time-Lapse Tomography of a Longwall Panel: A Comparison of Location Schemes
Page last reviewed: November 3, 2015
Page last updated: November 3, 2015
Content source: National Institute for Occupational Safety and Health, Mining Program
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