关键词: 事故起数, 海因里希, 事故类型, 乡镇煤矿

Abstract: Based on the statistics of coal mine safety production accidents in China from 2000 to 2021, the following accident characteristics are obtained: ① after 2002, the number of coal mine accidents and deaths in China decreased rapidly with an average annual rate of 18.4% and 17.6% respectively. ② The proportion of major accidents, major accidents and ordinary accidents is generally stable at 1:4:45, which shows that to effectively prevent major accidents, we must start from resolving ordinary accidents. ③ In recent five years, roof, transportation, other and gas accidents are still frequent, and gas, roof, water and fire accidents are easy to cause mass casualties. ④ Accidents occurred frequently in May, and major accidents occurred frequently in January, November and December. ⑤ Landslides in safety management of some key state-owned coal mines and violations of laws and regulations in township coal mines are still the main causes of group injuries.