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Mining Publication: In Situ Stress at the Lucky Friday Mine (In Four Parts): 3. Reanalysis of Overcore Measurements from the Star Mine
Keywords: Horizontal stress Idaho
Original creation date: July 1995
Authors: JK Whyatt, MJ Beus, MK Larson
Report of Investigations - July 1995
Download PDF Document (0.34 MB)
NIOSHTIC2 Number: 20024019
U.S. Department of the Interior, Bureau of Mines, Report of Investigations 9567. NTIS stock number PB95-271276, 1995 Jul :1-36
U.S. Bureau of Mines researchers reviewed an in situ stress estimate developed from measurements of overcore strain taken at test sites on the 7300 and 7500 levels of the Star Mine near Mullan, Idaho. Although the field measurements of overcoring strain were found to be useful, significant deficiencies were found in the stress estimation procedure. A new stress estimate was developed incorporating statistical methods and an improved understanding of stress concentration factors for interpreting overcore strains recorded by doorstopper cells. Spatial variability of overcore strains and the implications for stress field variability were explored.
Image of publication In Situ Stress at the Lucky Friday Mine (In Four Parts): 3. Reanalysis of Overcore Measurements from the Star MineReport of Investigations - July 1995
Download PDF Document (0.34 MB)
NIOSHTIC2 Number: 20024019
U.S. Department of the Interior, Bureau of Mines, Report of Investigations 9567. NTIS stock number PB95-271276, 1995 Jul :1-36
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): 4. Characterization of Mine In Situ Stress Field
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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