易自燃特厚煤层分层开采工作面自燃“三带”划分及防治措施

Spontaneous Combustion "Three Zone"Division of Layering Mining Face in Inflammable and Extremely Thick Coal Seam and Its Prevention Measures

摘要: 通过采空区束管观测的方法，分析得出401101工作面采空区自燃“三带”范围和工作面的最低推进速度，并根据测量分析的结果制定和采用综合性的防灭火方法。最后通过CO浓度变化检验出工作面采空区防灭火治理措施取得了良好的效果。

Abstract: Through the method of bundle tube monitoring in goaf, it is obtained that the range of spontaneous combustion "three zone" in goaf of 401101 working face and the working face lowest advancing rate. Based on the results of measurement and analysis, the comprehensive fire prevention and control methods are used. Finally, through the change of CO concentration, it shows that the measures achieve good results for fire prevention and control in goaf of working face.