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Mining Publication: A Method for Modeling Variation of In Situ Stress Related to Lithology
Keywords: Horizontal stress Modeling
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: July 2001
Authors: JK Whyatt
Conference Paper - July 2001
Download PDF Document (0.19 MB)
NIOSHTIC2 Number: 20021484
In: Elsworth D, Tinnucci JP, Heasley KA, eds. Rock Mechanics in the Public Interest. Proc 38th U.S. Rock Mechanics Symposium, DC Rocks, Vol. 2 (Washington, DC, July 7-10, 2001), Rotterdam: Balkema, 2001 Jul; :1087-1094
Assuring ground control safety in many mining and tunneling projects depends, at least in part, on an understanding of in situ stress conditions that will be encountered. Yet it is rarely practical to conduct more than a very limited number of stress measurements. Stresses along the route of a proposed excavation are typically interpolated from available measurements, often assuming a linear variation of stress with depth (or elevation). However, projects where multiple stress measurements are conducted often report more complex variations of in situ stress, usually in apparent relationship to geologic structures. These structures often include lithologies of contrasting elastic properties. A method is proposed for estimating stresses in these cases by first back-calculating regional loads from available stress measurements and then modeling the distribution of stress throughout the rock mass. The method has been successfully applied to a set of in situ stress measurements from the Coeur d'Alene Mining District of northern Idaho, USA. Results provided new insights into district stress conditions and the distribution of rockburst hazards along mine drifts and between various mines. This success should transfer readily to suitable deep tunneling projects.
Image of publication A Method for Modeling Variation of In Situ Stress Related to LithologyConference Paper - July 2001
Download PDF Document (0.19 MB)
NIOSHTIC2 Number: 20021484
In: Elsworth D, Tinnucci JP, Heasley KA, eds. Rock Mechanics in the Public Interest. Proc 38th U.S. Rock Mechanics Symposium, DC Rocks, Vol. 2 (Washington, DC, July 7-10, 2001), Rotterdam: Balkema, 2001 Jul; :1087-1094
See Also
Advance and Relieve Mining: A Method to Mitigate the Effects of High Horizontal Stress on the Mine Roof
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Effect of the Dip and Excavation Orientation on Roof Stability in Moderately Dipping Stone Mine Workings
Evaluation of the Relative Importance of Coalbed Reservoir Parameters for Prediction of Methane Inflow Rates During Mining of Longwall Development Entries
Experimental and Modeling Investigation of the Effect of Ventilation on Smoke Rollback in a Mine Entry
Horizontal Stress and Longwall Headgate Ground Control
Modeling and Data Analysis of 50 to 5000 kHz Radio Wave Propagation in Coal Mines
Reservoir Engineering Considerations for Coal Seam Degasification and Methane Control in Underground Mines
Safer Mine Layouts for Underground Stone Mines Subjected to Excessive Levels of Horizontal Stress
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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