矿井瓦斯爆炸冲击气流伤害研究  

Injury study on impact current of gas explosion in coal mine

作　　者：杨书召[1] 景国勋[1] 贾智伟[1] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454003

出　　处：《煤炭学报》2009年第10期1354-1358,共5页Journal of China Coal Society

基　　金：国家自然科学基金重点资助项目(50674041);高等学校博士学科点专项科研基金(20050460002)

摘　　要：运用爆炸气体动力学理论,对煤矿掘进巷道瓦斯爆炸冲击气流的衰减规律进行研究.通过对瓦斯爆炸冲击气流的衰减规律分析表明,爆炸冲击气流的冲击速度与传播距离和巷道断面积的平方根成反比,与瓦斯的初始爆炸能量成正比.在分析的基础上,建立了冲击气流伤害模型.试验与理论计算的对比表明,理论计算的数据与试验获得的数据比较吻合,证明了爆炸冲击气流速度随爆炸距离衰减公式的合理性.Combined with the theory of the energy and gas explosion dynamics, the attenuation law of impact current in excavation roadway was deduced during gas explosion. The deduction shows that the impact current of gas explosion is inversely proportional to the square root of the propagation distance and the roadway section, and in direct proportion to the square root of the accumulated volume of gas comparing the analysis between experiment and deduction. On the analytical foundation, built up impact current of air to hurt model. It is concluded that the theoretical data is fairly close to that of the experiment, which proves that the deduction of the impact current of gas explosion attenuating with the propagation distance is reasonable.

关 键 词：瓦斯爆炸 冲击气流 衰减规律 伤害模型 

分 类 号：TD712.7[矿业工程—矿井通风与安全]