Mining Publication: Static and Dynamic Loads in Ore and Waste Rock Passes in Underground Mines
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Original creation date: June 1999
This paper describes research to improve safety during transport of ore and waste in underground mines. Field test are underway in mines in Idaho and Montana. Strains measured on structural support members in an ore pass provided information about total forces acting on the structure as material was dumped into it. Results show that measured static loads were considerably less than actual total weight of the material dumped and that dynamic loads were subject to many factors, such as effects of blasting to remove hang-ups. Comparisons of measurements and computer results using a particle flow code indicated that several difficulties remain before achieving realistic determination and models of the dynamic effects of particle flow in ore passes and impact loads on the gates. Impact loads were overestimated in computer analyses as compared to loads measured in field tests. An alternative design approach based on softening the chute and control gate assembly is being proposed.
Authors: MJ Beus, SR Iverson, A Dreschler, VA Scott
Conference Paper - June 1999
NIOSHTIC2 Number: 20028121
In: Rock Mechanics for Industry - Proceedings of the 37th U.S. Rock Mechanics Symposium, Vail, Colorado, June 6-9, 1999. Rotterdam, Netherlands: A. A. Balkema Publishers, 1999 Jun; :489-495
See Also
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- Design Analysis of Underground Mine Ore Passes: Current Research Approaches
- Performance and Safety Investigation of Emergency Backup Batteries and Battery Charging Systems for Underground Mining Applications
- Practical Risk Assessment Guidelines for Identifying, Assessing, and Mitigating Stored Energy Hazards in Underground Coal Mines During and After a Mine Emergency
- Refuge Alternatives in Underground Coal Mines
- Safe and Economical Inerting of Sealed Mine Areas
- SPONCOM - A Computer Program for the Prediction of the Spontaneous Combustion Potential of an Underground Coal Mine
- Technology News 514 - The Air Quantity Estimator (AQE): A New Computer Software Tool for Large-opening Mine Ventilation Planning
- Ultra-Low Frequency Through-the-Earth Communication Technology
- Wireless Mesh Mine Communication System
- Page last reviewed: 9/21/2012
- Page last updated: 9/21/2012
- Content source: National Institute for Occupational Safety and Health, Mining Program