特厚易自燃煤层综放工作面临界瓦斯抽放量的确定  

Determination of Critical Gas Drainage Volume in Fully Mechanized Caving Face in Extra-thick Inflammable Coal Seam

作　　者：杜海刚[1,2] 冯姗[1,3] 褚廷湘[2,3] 余明高[2,3] 

机构地区：[1]六盘水师范学院,贵州六盘水553004 [2]河南理工大学安全科学与工程学院,河南焦作454003 [3]重庆大学资源及环境科学学院,重庆400044

出　　处：《矿业安全与环保》2015年第6期18-21,26,共5页Mining Safety & Environmental Protection

基　　金：贵州省教育厅资助项目(黔教合KY字[2014]313);六盘水师范学院校级基金项目(LPSSY201405);国家自然科学基金项目(51404090);贵州省教育厅采矿工程重点学科项目(黔教高发[2013]140号)

摘　　要：基于特厚煤层瓦斯抽采与煤自燃双重耦合影响,确定综放工作面的临界瓦斯抽放量。根据束管监测系统现场实测及利用Fluent软件数值模拟,得出煤自燃防治条件下的综放工作面临界风量为1 100 m3/min,综合瓦斯抽采与煤自燃防治耦合影响下的临界瓦斯抽放量为180 m3/min。Based on the double coupling influence of gas drainage and coal spontaneous combustion in the extra-thick coal seam, the critical gas drainage volume in the fully mechanized caving face was determined. According to the site measurement by the bundle tube monitoring system and the numerical simulation with Fluent software, it was obtained that the critical air quantity in the fully mechanized caving face was 1 100 m3/min under the control conditions of coal spontaneous combustion and the critical gas drainage volume in the fully mechanized caving face under the coupling influence of the comprehensive gas drainage and the prevention and control of coal spontaneous combustion was 180 m3/min.

关 键 词：瓦斯抽采 煤自燃 综放工作面 漏风 

分 类 号：TD712[矿业工程—矿井通风与安全]