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To understand the causes and laws of large and above accidents in coal mines in China, the large and above accidents in coal mines in China from 2011 to 2020 were collected and sorted out. The number of occurrences, deaths, accident types and related laws of accident areas of large and above accidents in coal mines in China wasanalyzed. Then, the safety entropy model and safety degree were used to analyze the typical major coal mine accidents. The results show that:(1) The number of accidents and deaths in coal mines in China shows a decreasing trend, and the coal mine safety situation improved significantly;(2) In terms of accident types, the main factors for large and above accidents in coal mines are gas, water, roof, and fire. Among them, gas accidents occurred most, the most serious consequences, followed by flood accidents;(3) From the regional perspective, the provinces with a high frequency of coal mine accidents are Sichuan, Guizhou, Yunnan, Hunan, Shanxi, and Heilongjiang. The main reasons for this are the differences in coal seam occurrence conditions, coalfield geological structure, and underground environment in different regions of China;(4) The causes of coal mine accidents are that the safety degree of various influencing factors in the process of system production is declining, and the entropy value is increasing, which causes system confusion and leads to accidents. From the perspective of safety entropy model and safety degree, this paper analyzes the influencing factors of the extra-large gas explosion accident in Chifeng Baoma Coal Mine of Inner Mongolia and the extra-large accident in Songzao Coal Mine of Chongqing and puts forward effective prevention and control measures to make the system in a safe state, which can also provide reference and guidance for the safety production of coal mines.
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Basic Information:
DOI：10.13637/j.issn.1009-6094.2022.0963
China Classification Code:TD77
Citation Information:
[1]WANG Yungang,CUI Chunyang,ZHANG Feiyan ,et al.Statistical analysis and research on major and above coal mine accidents in China from 2011 to 2020[J].Journal of Safety and Environment,2023,23(09):3269-3276.DOI:10.13637/j.issn.1009-6094.2022.0963.
Fund Information:
国家自然科学基金项目(U1704129,51974108); 河南省基础与前沿技术研究计划项目(14230013211)
2022-10-10
2022-10-10
2022-10-10