Study on Regularity of Coal Mine Blasting Accidents of China after 2000

Abstract

In this article, 133 massive colliery blasting accidents were statistically analyzed in China after 2000, mainly from two aspects of the accident number and death number, three aspects such as the type of accidents, the time rule of accidents, and provincial were analyzed statistically; 72 massive colliery blasting accidents caused by blasters were analyzed statistically with regard to the unsafe act of blasters. The statistical results show that the accident and death number presents a downward opening parabolic trajectory by year; The time of the accident is more concentrated, and the fate casualties happened frequently around March, July, November and December, February is the least; Coal mine gas accident is the main type of blasting accidents, and the coal dust explosion accident causes most deaths averagely; The past statistical method seriously neglected the seriousness of blasting accidents; The coal mine underwent massive colliery blasting accidents distribute widely, but six provinces (Guizhou, Shanxi, Heilongjiang, Sichuan, Henan, Hunan, Liaoning) are the key places of blasting accidents; There are 22 species of unsafe act to blasters, the most common unsafe act is no working face environmental inspection, material and tools be used unsafely and improperly. Coal enterprises, government, and regulators should strengthen the prevention of the key time, accident style, region, and the common unsafe blasting act to the regularity of coal mine blasting accidents.