H型巷道不同聚积范围瓦斯爆炸模型数值模拟研究  

Numerical simulation of gas explosion model in different accumulation range of H-type roadway

作　　者：王维建 叶青 贾真真 WANG Weijian;YE Qing;JIA Zhenzhen(School of Resources&Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan 411100,China;School of Physics and Engineering Technology,Minzu Normal University of Xingyi,Xingyi 562400,China)

机构地区：[1]湖南科技大学资源环境与安全工程学院,湖南湘潭411100 [2]兴义民族师范学院物理与工程技术学院,贵州兴义562400

出　　处：《矿业安全与环保》2023年第4期13-18,共6页Mining Safety & Environmental Protection

基　　金：国家自然科学基金项目(52174177,52174178);贵州省教育厅青年成长项目(黔教合KY字[2019]227)。

摘　　要：针对H型巷道内4种不同聚积长度范围瓦斯爆炸模型,运用Fluent软件对巷道内瓦斯爆炸现象进行了数值模拟研究,结果表明:不同聚积长度范围的瓦斯爆炸模型冲击波在巷道内传播规律相似,巷道内各点压力变化趋势与瓦斯聚积长度无关,但压力大小与瓦斯聚积长度相关,即聚积长度越长,达到超压值越大。通过比较巷道内各监测点冲量大小,发现瓦斯聚积区与传播障碍区,如封闭端等遭受爆炸危害严重程度更大。Aiming at 4 kinds of gas explosion models with different accumulation lengths in H-type roadway,this study uses Fluent software to numerically simulate the phenomenon of gas explosion in roadway.The results show that the propagation law of shock wave in roadway is similar for gas explosion models with different accumulation length,the change trend of pressure at each point in the roadway has nothing to do with the length of gas accumulation,but the pressure is related to the length of gas accumulation.That is,the longer the accumulation length,the greater the overpressure value.By comparing the impulse of each monitoring point in the roadway,it is found that the gas accumulation area and the transmission barrier area,such as the closed end,are more seriously damaged by explosion.

关 键 词：瓦斯爆炸 H型巷道 数值模拟 聚积长度 冲击波 联络巷 

分 类 号：TD712.7[矿业工程—矿井通风与安全]