Mining Publication: Strength Characteristics and Air-Leakage Determinations for Alternative Mine Seal Designs
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Original creation date: January 1993
During the normal course of underground coal mining, it sometimes becomes necessary to seal off abandoned areas to eliminate the need to ventilate them. Seals also are used to isolate fire zones or areas susceptible to spontaneous combustion. The objective of the research is to determine whether seals constructed from various materials and designs can withstand a 20-psig methane-air explosion without losing their structural integrity.
Authors: ES Weiss, NB Greninger, CR Stephan, JR Lipscomb
Report of Investigations - January 1993
NIOSHTIC2 Number: 10004319
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9477, 1993 Jan; :1-21
See Also
- Clearing the Air
- Comparison of Methods: Dynamic Versus Hydrostatic Testing of Mine Ventilation Seals
- Demonstration of Safety Plugging of Oil Wells Penetrating Appalachian Coal Mines
- Explosion Pressure Design Criteria for New Seals in U.S. Coal Mines
- Inflatable Partitions for High-Expansion Foam Generators
- Methods for Evaluating Explosion Resistant Ventilation Structures
- Progress Toward Improved Engineering of Seals and Sealed Areas of Coal Mines
- Strengthening Existing 20-psi Mine Ventilation Seals With Carbon Fiber-Reinforced Polymer Reinforcement
- Use of Ground Penetrating Radar and Schmidt Hammer Tests to Determine the Structural Integrity of a Mine Seal
- Use of Pressure Swing Adsorption Technology to Inert Sealed Mine Areas with Nitrogen
- Content source: National Institute for Occupational Safety and Health, Mining Program