- Chinese Core Periodicals
- Chinese Core Journals of Science and Technology
- RCCSE Chinese Authoritative Academic Journals
| Citation: |
OUYANG Zhenhua, XU Qianhai, ZHANG Ningbo, et al. Classification and weighting evaluation method for rock burst prevention safety and its application in coal mine[J]. Safety in Coal Mines, 2024, 55（10）: 82−90. DOI: 10.13347/j.cnki.mkaq.20240913
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In view of the current situation that mine impact risk evaluation mainly focuses on the design stage or prior to the implementation of anti-impact measures, and lacks the safety evaluation of mining face after the implementation of anti-impact measures, the types of rock burst are divided into five types: coal type, coal pillar type, roof type, fault type and comprehensive type, taking into account the occurrence location, failure form, load type and focal location; based on the idea of classification prevention and control, a classification weighted evaluation method is proposed, considering the impact of impact risk, roadway surrounding rock, monitoring and early warning system, anti-impact support system, anti-impact rock pressure prevention measures and anti-impact management ability on anti-impact safety; the calculation formula of safety factor of anti-impact is given. The safety level of anti-impact is divided into three levels: safety, basic safety and unsafe. Taking the 31119 working face of a mine as an example, the complete process and result of anti-impact safety evaluation are given. The safety evaluation of some typical mining face with impact risk is carried out by using the classification weighting evaluation method, and the reliability of the evaluation results is verified by combining with the actual impact occurrence.
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