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Mining Publication: Stress Measurement of a Jointed Rock Mass During Drift Development
Keywords: Drifts Mine development
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: September 1999
Authors: JC Johnson, MK Larson, TM Brady, JK Whyatt, RB Langston, H Kirsten
Conference Paper - September 1999
Download PDF Document (0.69 MB)
NIOSHTIC2 Number: 20028186
In T.O. Hagan (ed). SARES 99: Second Southern African Rock Engineering Symposium. Implementing Rock Engineering Knowledge. Johannesburg, S. Africa, September 13-15, 1999. Portugal: International Society of Rock Mechanics, Sep 1999; :94-101
An experiment is described in which hollow inclusion cells (HICells) were used to measure stress in a jointed rock mass during drift development at the Stillwater Mine, Nye, MT, USA. Two HICells were installed in the footwall approximately two drift widths ahead of the face. One HICell was overcored and then immediately tested in a biaxial chamber. The other HICell was left in place and monitored as the drift was excavated in three advances, each one-half the width of the drift. Strains were recorded hourly by a datalogger. Results show that there was little stress change during the first and second drift advances, but that a large stress change occurred after the third advance. The measurements also showed that the in situ principal stress directions lined up with regional geologic structures. Stress changes during face advance were likely caused by deformation along localized joint sets and inelastic deformation near the face.
Image of publication Stress Measurement of a Jointed Rock Mass During Drift DevelopmentConference Paper - September 1999
Download PDF Document (0.69 MB)
NIOSHTIC2 Number: 20028186
In T.O. Hagan (ed). SARES 99: Second Southern African Rock Engineering Symposium. Implementing Rock Engineering Knowledge. Johannesburg, S. Africa, September 13-15, 1999. Portugal: International Society of Rock Mechanics, Sep 1999; :94-101
See Also
Cleat in Bituminous Coalbeds
A Gas Pressure-Based Drift Round Blast Design Methodology
In Situ Stress Measurements at the Stillwater Mine, Nye, Montana
Problems Facing Coal Mining and Gas Production in the Hartshorne Coalbeds of the Western Arkoma Basin, OK
Research and Development Contract for Coal Mine Communication System: Volume 1 - Summary and Results of System Study
Research and Development Contract for Coal Mine Communication System: Volume 2 - Mine Visits
Research and Development Contract for Coal Mine Communication System: Volume 3 - Theoretical Data Base
Reservoir Modeling-Based Prediction and Optimization of Ventilation Requirements During Development Mining in Underground Coal Mines
Rock Bursting and Seismicity During Ramp Development, Lucky Friday Mine, Mullan, Idaho
Use of Strain-Gauged Rock Bolts to Measure Rock Mass Strain During Drift Development
Page last reviewed: June 14, 2016
Page last updated: June 14, 2016
Content source: National Institute for Occupational Safety and Health, Mining Program
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