https://orcid.org/0000-0002-3438-8547
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ABSTRACT
Most statistical analyses of coal mine explosion accidents involved single-factor problem assessment. To investigate the trend and correlation of accident causes, then implement targeted prevention and control measures for gas explosion accidents, explosion accidents that occurred in China’s coal mines in 2000–2020 were statistically analyzed. The results show that working face and transportation roadway are the main sites of explosions, accounting for 80.48% of all such incidents. The causes of ventilation failure are significantly reduced, and the windless breeze has become the most prominent cause of gas accumulation in recent years. Electrical sparks remain the highest ignition source, but the proportion of gas explosion accidents induced by illegal blasting is increasing. Gas explosion accidents in the working face which are accumulated by no breeze, ventilation failure, and detonation by electric sparks or blasting flames, are the most frequent. The roadway has the strongest correlation therewith. The statistical analysis provides a reference for the prevention of coal mine explosion accidents.
Disclosure statement
No potential conflict of interest was reported by the author(s).