Assessment of energy release mechanisms contributing to coal burst

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• 作者：Chengguo Zhang ; ^{chengguo.zhang@unsw.edu.au} ; Ismet Canbulat ; Faham Tahmasebinia ; Bruce Hebblewhite
• 关键词：Coal burst ; Coal burst mechanisms ; Energy release ; Numerical modelling ; Mine geomechanics
• 刊名：International Journal of Mining Science and Technology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：27
• 期：1
• 页码：43-47
• 全文大小：747 K
• 卷排序：27

文摘

Coal burst is a dynamic release of energy within the rock (or coal) mass leading to high velocity expulsion of the broken/failed material into mine openings. This phenomenon has been recognised as one of the most catastrophic failures associated with the coal mining industry, which can often lead to injuries and fatalities of miners as well as significant production losses. This paper aims to examine the mechanisms contributing to coal burst occurrence, with an emphasis on the energy release concept. In this study, a numerical modelling study has been conducted to evaluate the roles and contributions of difference energy components. The energy analysis presented in this paper can help to improve the understanding of energy release mechanisms especially under Australian conditions.