Shale Failure Mechanics and Intervention Measures in Underground Coal Mines: Results From 50 Years of Ground Control Safety Research
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- 作者：M. M. Murphy
- 关键词：Ground control ; Rock mechanics ; Shale ; Underground coal mining
- 刊名：Rock Mechanics and Rock Engineering
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：49
- 期：2
- 页码：661-671
- 全文大小：2,130 KB
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1. NIOSH-Office of Mine Safety and Health Research, 626 Cochrans Mill Road, Pittsburgh, PA, 15236, USA - 刊物类别：Earth and Environmental Science
- 刊物主题：Earth sciences
Geophysics and Geodesy
Civil Engineering - 出版者：Springer Wien
- ISSN：1434-453X
文摘
Ground control research in underground coal mines has been ongoing for over 50 years. One of the most problematic issues in underground coal mines is roof failures associated with weak shale. This paper will present a historical narrative on the research the National Institute for Occupational Safety and Health has conducted in relation to rock mechanics and shale. This paper begins by first discussing how shale is classified in relation to coal mining. Characterizing and planning for weak roof sequences is an important step in developing an engineering solution to prevent roof failures. Next, the failure mechanics associated with the weak characteristics of shale will be discussed. Understanding these failure mechanics also aids in applying the correct engineering solutions. The various solutions that have been implemented in the underground coal mining industry to control the different modes of failure will be summarized. Finally, a discussion on current and future research relating to rock mechanics and shale is presented. The overall goal of the paper is to share the collective ground control experience of controlling roof structures dominated by shale rock in underground coal mining. Keywords Ground control Rock mechanics Shale Underground coal mining