煤尘爆炸冲击波传播规律及造成的伤害分区研究

Research on spreading law and damage area of shock wave of coal dust explosion

为减少煤矿煤尘爆炸后冲击波对人的危害,为煤矿防爆、抑爆和安全评价以及事故应急救援等提供理论依据,研究了煤尘爆炸后冲击波的传播规律.基于粉尘爆炸理论,采用理论与实验研究方法,研究了爆炸空气冲击波超压在巷道内的传播规律及超压所造成的伤害规律.结果表明煤尘爆炸冲击波超压与传播距离、巷道断面面积的平方根成反比,理论与实验分析的结果基本吻合,在此基础上划分了冲击波超压所造成的不同伤害范围.

Providing theoretical basis for reducing shock wave hazard of coal dust explosion to human,mine explosion-proof,explosion suppression and safety evaluation,as well as emergency and rescue,it studyied the spreading law of shock wave after coal dust explosion.Based on the coal dust explosion theory,the study was done on the spreading law and damage law of the shock wave overpressure of coal dust explosion in tunnel though the theoretical analysis and experimental testing.Research indicates that the overpressure of coal dust explosion shock wave is inversely proportional to transmission distance and the square root of tunnel broken area.Theoretical analysis results is basicly responding with the experimental testing.Basing on this,it divided the areas of damage caused by overpressure.