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Mining Publication: Detection and Control of Spontaneous Heating in Coal Mine Pillars-A Case Study
Keywords: Gases Heat Pillars Sampling
Original creation date: January 1995
Authors: RJ Timko, RL Derick
Report of Investigations - January 1995
Download PDF Document (0.32 MB)
NIOSHTIC2 Number: 20022927
U.S. Department of the Interior, Bureau of Mines, Report of Investigations 9553. NTIS stock number: PB95-236790, 1995 Jan :1-18
This U.S. Bureau of Mines study examined spontaneous heating episodes in coal mine pillars in an active underground coal mine. The information obtained from these incidents was then analyzed to learn which sampling methods provided the earliest indication of pillar heating. The objective of this study was to discover if the location of future events of pillar spontaneous heating could be inferred from the available information. The spontaneous heating-prone area in this evaluation involved pillars located just inby the mine portals. Several detection methods were used to determine gas levels outside as well as inside the affected pillars. It was hoped that, by incorporating external and internal sampling methods into an organized program, locations undergoing spontaneous heating could be determined more readily. This study found that by drilling small-diameter boreholes into the pillars, then obtaining gas samples from the affected pillars, the ability to locate early spontaneous heating episodes was improved. However, the ability to accurately predict future spontaneous heating events remains in question.
Image of publication Detection and Control of Spontaneous Heating in Coal Mine Pillars-A Case StudyReport of Investigations - January 1995
Download PDF Document (0.32 MB)
NIOSHTIC2 Number: 20022927
U.S. Department of the Interior, Bureau of Mines, Report of Investigations 9553. NTIS stock number: PB95-236790, 1995 Jan :1-18
See Also
Advance and Relieve Mining: A Method to Mitigate the Effects of High Horizontal Stress on the Mine Roof
Benchmarking Longwall Dust Control Technology and Practices
Cause of Floor Self-Heatings in an Underground Coal Mine
Determining the Spatial Variability of Personal Sampler Inlet Locations
Effects of Weak Bands on Pillar Stability in Stone Mines: Field Observations and Numerical Model Assessment
The Limiting Oxygen Concentration and Flammability Limits of Gases and Gas Mixtures
Pillar Design Issues for Underground Stone Mines
Pillar Stability Issues Based on a Survey of Pillar Performance in Underground Limestone Mines
Reconciling Longwall Gob Gas Reservoirs and Venthole Production Performances Using Multiple Rate Drawdown Well Test Analysis
Rock Dusting Considerations in Underground Coal Mines
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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