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ORIGINAL RESEARCH article
Front. Earth Sci.
Sec. Geohazards and Georisks
Volume 12 - 2024 |
doi: 10.3389/feart.2024.1436970
This article is part of the Research Topic Prevention, Mitigation, and Relief of Compound and Chained Natural Hazards Volume II View all 3 articles
Study on the early warning of cracking and water inrush risk of coal mine roof and floor
Provisionally accepted- 1 Hefei Comprehensive National Science Center, Hefei, China
- 2 Anhui University of Science and Technology, Huainan, Anhui, China
- 3 Anhui Zhibo Photoelectric Technology Co., Ltd, Hefei, China
- 4 Chengdu University of Technology, Chengdu, Sichuan Province, China
- 5 Dalian University of Technology, Dalian, Liaoning Province, China
- 6 Brunel University London, Uxbridge, United Kingdom
- 7 Guizhou Institute of Mine Safety Science, Guiyang, Guizhou Province, China
Microseismic monitoring has proven to be an effective approach for detecting and preempting water inrush incidents within mining operations. However, challenges persist, particularly in terms of relying on a singular early warning index and the complexities involved in quantification. In response to these obstacles, a dedicated investigation was undertaken against the backdrop of mining activities at the 11023 working face of Paner Coal Mine.Primarily, a novel methodology for categorizing the roof and floor into distinct zones was established based on the vertical distribution of microseismic events. Furthermore, this study delves into the dynamic evolution of key source parameters, such as microseismic energy, apparent stress, and apparent volume, amidst mining disturbances, enabling a comprehensive evaluation of the risk associated with roof and floor cracking, as well as potential water inrush incidents. A groundbreaking approach to early warning was proposed, operating on three pivotal dimensions: the depth of fractures, the intensity of fractures, and the likelihood of water inrush. Through rigorous validation during mining operations at the 11023 working face, the efficacy was substantiated. Ultimately, the achievements offer invaluable insights and practical guidance for the advancement and implementation of water inrush early warning systems in coal mining contexts.
Keywords: Coal mine, Water inrush, early warning, microseismic monitoring, Periodic pressure
Received: 22 May 2024; Accepted: 01 Jul 2024.
Copyright: © 2024 Zhang, Wei, Tang, Duan, Gong, Mu and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Bin Gong, Brunel University London, Uxbridge, United Kingdom
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