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Mining Publication: In Situ Stress at the Lucky Friday Mine (In Four Parts): 4. Characterization of Mine In Situ Stress Field
Keywords: Horizontal stress Idaho
Original creation date: July 1995
Authors: JK Whyatt, TJ Williams, W Blake
Report of Investigations - July 1995
Download PDF Document (1.55 MB)
NIOSHTIC2 Number: 20024020
U.S. Department of the Interior, Bureau of Mines, Report of Investigations 9582. NTIS stock number PB96-131685, 1995 Jil :1-33
Researchers at the U.S. Bureau of Mines collected and analyzed overcore measurements and other indicators of in situ stress characteristics at the Lucky Friday Mine, Mullan, Idaho. An analysis of these data revealed that significant local variations in in situ stress are present in this mine and that these variations existed prior to mining. High stresses were found to be associated with the most competent strata and a locked section of a fault. An estimate of the predominant stress field was developed for mine-wide modeling. The estimate shows that the greatest principal stress was oriented north of northwest. This information should provide a basis for mine-wide structural modeling of the Lucky Friday Mine and should generate important insights into localized stress conditions, which may significantly affect both local and mine-to-mine variations in seismicity induced by excavation.
Image of publication In Situ Stress at the Lucky Friday Mine (In Four Parts): 4. Characterization of Mine In Situ Stress FieldReport of Investigations - July 1995
Download PDF Document (1.55 MB)
NIOSHTIC2 Number: 20024020
U.S. Department of the Interior, Bureau of Mines, Report of Investigations 9582. NTIS stock number PB96-131685, 1995 Jil :1-33
See Also
60 Years of Rockbursting in the Coeur D'Alene District of Northern Idaho, USA: Lessons Learned and Remaining Issues
Advance and Relieve Mining: A Method to Mitigate the Effects of High Horizontal Stress on the Mine Roof
Controlling Roof Beam Failures From High Horizontal Stresses in Underground Stone Mines
Effect of the Dip and Excavation Orientation on Roof Stability in Moderately Dipping Stone Mine Workings
Horizontal Stress and Longwall Headgate Ground Control
In Situ Stress at the Lucky Friday Mine (In Four Parts): 3. Reanalysis of Overcore Measurements from the Star Mine
New Tricks for an Old Elephant: Revising Concepts of Coeur d'Alene Geology
Safer Mine Layouts for Underground Stone Mines Subjected to Excessive Levels of Horizontal Stress
Stress Measurements for Safety Decisions in Longwall Coal
Temporal Imaging of Mine-Induced Stress Change Using Seismic Tomography
Variation of Horizontal Stresses and Strains in Mines in Bedded Deposits in the Eastern and Midwestern United States
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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