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Mining Publication: Pillar Mechanics of Coal Mine Bursts: A Control Strategy
Keywords: Coal mining Engineering controls Geology Rock mechanics Underground mining
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 1995
Authors: AT Iannacchione, JC Zelanko
Conference Paper - September 1995
Download PDF Document (0.67 MB)
NIOSHTIC2 Number: 10005668
Paper in The Mining Industry on the Threshold of XXI Century; Proceedings of 16th World Mining Congress, 12-16 September 1994, Sofia, Bulgaria, 1995 :9 pages
One of the most difficult and longstanding engineering problems associated with coal mining is the catastrophic failure phenomenon known as coal mine bursts (known in the United States as bumps). For more than 70 years, researchers and practitioners have attempted to determine whether this destruction observed underground is caused by stress conditions within the coal pillar or from distant seismic sources in the mine roof and floor strata. The role of confinement and the extent of failure in solid pillars and panels have also proven difficult to define. These are important issues, since control solutions need to be based on a fundamental understanding of the problem. Observations by U.S. Bureau of Mines researchers over the last decade have helped to clarify certain aspects of these issues. Microseismic sensors and geomechanic field measurements have located areas of excess energy release, identified stress conditions in coalbeds close to failure, and recorded the response of mine structures prone to bursts. In the present study, data available for a range of U.S. bursts were considered in an effort to evaluate both common and distinctive features. Although the attempt revealed little commonality, encouraging results were produced by categorizing coal bursts by source mechanisms. When a coal burst is thus categorized, differences in environmental factors-such as geology, stress fields, and mining methods-are highlighted, and viable control strategies are readily recognized.
Image of publication Pillar Mechanics of Coal Mine Bursts: A Control StrategyConference Paper - September 1995
Download PDF Document (0.67 MB)
NIOSHTIC2 Number: 10005668
Paper in The Mining Industry on the Threshold of XXI Century; Proceedings of 16th World Mining Congress, 12-16 September 1994, Sofia, Bulgaria, 1995 :9 pages
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Reservoir Rock Properties of Coal Measure Strata of the Lower Monongahela Group, Greene County (Southwestern Pennsylvania), from Methane Control and Production Perspectives
Safe and Economical Inerting of Sealed Mine Areas
Technology News 526 - Proceedings of the International Workshop on Rock Mass Classification in Underground Mining
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Wireless Mesh Mine Communication System
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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