Multiparameter Monitoring and Prevention of Fault-Slip Rock BurstReport as inadecuate




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Shock and Vibration - Volume 2017 2017, Article ID 7580109, 8 pages - https:-doi.org-10.1155-2017-7580109

Research ArticleState Key Laboratory of Mining Disaster Prevention and Control Co-Founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China

Correspondence should be addressed to Yun-liang Tan, Jian-guo Ning, and Wei-Yao Guo

Received 16 November 2016; Accepted 23 March 2017; Published 3 April 2017

Academic Editor: Ivo Caliò

Copyright © 2017 Shan-chao Hu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Fault-slip rock burst is one type of the tectonic rock burst during mining. A detailed understanding of the precursory information of fault-slip rock burst and implementation of monitoring and early warning systems, as well as pressure relief measures, are essential to safety production in deep mines. This paper first establishes a mechanical model of stick-slip instability in fault-slip rock bursts and then reveals the failure characteristics of the instability. Then, change rule of mining-induced stress and microseismic signals before the occurrence of fault-slip rock burst are proposed, and multiparameter integrated early warning methods including mining-induced stress and energy are established. Finally, pressure relief methods targeting large-diameter boreholes and coal seam infusion are presented in accordance with the occurrence mechanism of fault-slip rock burst. The research results have been successfully applied in working faces 2310 of the Suncun Coal Mine, and the safety of the mine has been enhanced. These research results improve the theory of fault-slip rock burst mechanisms and provide the basis for prediction and forecasting, as well as pressure relief, of fault-slip rock bursts.





Author: Shan-chao Hu, Yun-liang Tan, Jian-guo Ning, Wei-Yao Guo, and Xue-sheng Liu

Source: https://www.hindawi.com/



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