摘要
针对西南地区多瓦斯突出灾害矿井的情况，按照瞬交流理论推导出突出后气体在巷道 内的一维非定常流动模型，运用特征线方法求出瓦斯对矿井安全构筑物的冲击破坏作用最大冲击力 的变化规律，以及其与风门安设位置之间的关系。并以白皎煤矿“３．２７”事故时通风系统参数，模 拟计算了瓦斯的逆流情况，计算结果与实际相吻合。
-An one-dimensional non-stationary flow model for gases after an outburst in a roadway was derived on the basis of the theory of instantaneous flow and in accordance with the circumstance of mines with gas outburst hazard in southwest China, and the variation regularity of maximum shock force of burst gases on mine safety structures and its relation with the setting position of air doors were found out by means of characteristic lines. Also simulative calculation on reversible gas flow was conducted by using the parameters of ventilation system during '3.25' accident in Baijiao Coal Mine and the calculated results tally with the actual values.
出处
《矿业安全与环保》
北大核心
2000年第2期16-18,共3页
Mining Safety & Environmental Protection
