Analysis of coal mine accidents in China during 2004-2015

The paper analyzed the number of various types of accidents, deaths and their ratios in Chinese coal mines during 2004-2015. Since 2004, the number of deaths caused by gas accident is the largest in 2005 and 2013, the number of deaths caused by roof accident is the largest in 2015 as well as the number of deaths caused by gas accident, and the number of deaths caused by roof accident is the largest in the remaining 9 years. In the last 12 years, 20 731 death accidents occur in coal mines in China, which result in 34 729 deaths, and the average death toll per death accident is 1.7 person. Among the death accidents, the average death toll per accident of gas, water and fire are 4.4, 4.3 and 7.6 person respectively. Therefore, prevention and control of gas, water and fire accidents need to be further strengthened in order to avoid and reduce occurrence of major accidents.