2012—2021年中国煤矿瓦斯事故发生规律和特点研究

Study on the occurrence regularity and characteristics of coal mine gas accidents in China from 2012 to 2021

为深入了解煤矿瓦斯灾害事故,分析出煤矿瓦斯灾害事故特征及其预防对策。基于2012—2021年间我国煤矿井下瓦斯灾害事故数据,采用定性定量的方法从瓦斯事故的发生时间、地区、月份、原因和事故类型等几个方面分析了瓦斯事故的发生频率和时空分布。研究结果表明,瓦斯事故在3月、5月、8月的发生数量和死亡人数远高于其他月份,大多数事故发生在上午10:00~12:00;瓦斯爆炸事故的数量在瓦斯事故类型中占比最高,死亡人数最多;在地理分布方面,贵州、山西和四川所在西南地区瓦斯灾害事故发生率最高,死亡人数最多。

In order to deeply understand the coal mine gas disaster accidents,the characteristics and prevention countermeasures of coal mine gas disaster accidents are analyzed.Based on the data of gas disaster accidents in coal mines in China from 2012 to 2021,the frequency and spatial-temporal distribution of gas accidents were analyzed from the aspects of time,region,month,cause and type of gas accidents by qualitative and quantitative methods.The results show that the number of gas accidents and deaths in March,May and August are much higher than those in other months,and most of the accidents occur from 10:00 to 12:00 in the morning.The number of gas explosion accidents accounts for the highest proportion of gas accident types and the largest number of deaths;in terms of geographical distribution,the southwest region of Guizhou,Shanxi and Sichuan has the highest incidence of gas disasters and the highest number of deaths.