Analysis and evaluation of essential factors for rock burst mechanism

Ma Nianjie; Zhang Wenlong; Li Jun; Lian Xiaoyong; Ren Jianjü

doi:10.19606/j.cnki.jmst.2021.06.003

Volume 6 Issue 6

Nov. 2021

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Ma Nianjie, Zhang Wenlong, Li Jun, Lian Xiaoyong, Ren Jianjü. Analysis and evaluation of essential factors for rock burst mechanism[J]. Journal of Mining Science and Technology, 2021, 6(6): 651-658. doi: 10.19606/j.cnki.jmst.2021.06.003

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Analysis and evaluation of essential factors for rock burst mechanism

doi: 10.19606/j.cnki.jmst.2021.06.003

School of Energy and Mining Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China

Received Date: 2021-03-05
Rev Recd Date: 2021-04-14
Publish Date: 2021-12-01

Abstract

Abstract

This paper puts forward the energy characteristics and mechanism elements of rock burst, and preliminarily establishes the evaluation index and system of roadway rock burst mechanism ("3 + 4" index system).The main criterion layer of the system is the energy release characteristic index of rock burst and the key element index of rock burst mechanism.The secondary criterion layer is sudden energy release, instantaneous energy release, concentrate energy release, and forming element, key element, hypothesis condition and universal regularity.The weight of each criterion layer is calculated by analytic hierarchy process method.The calculation method and classification standard of comprehensive evaluation results are put forward.According to the established evaluation index system of rock burst mechanism, the butterfly rock burst mechanism is evaluated, and the evaluation result is "excellent". The research results can be used to evaluate the existing rock burst mechanism, and point out the direction for the follow-up research of rock burst mechanism.
- rock burst mechanism,
- rock burst characteristics,
- mechanism elements,
- evaluation index,
- evaluation system

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Analysis and evaluation of essential factors for rock burst mechanism

doi: 10.19606/j.cnki.jmst.2021.06.003

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