31102采面采空区自燃“三带”实测结果分析

Field Survey of Spontaneous Combustion"Three Zones"in Goaf of 31102 Caving Face

为有效分析31102采空区自燃“三带”的分布规律,根据31102工作面及采空区的具体特征,采用现场采空区埋管抽气的方式进行采空区内指标气体的监测;根据监测结果,对采空区内高温危险区域进行分析,并根据采空区自燃“三带”的划分方法进行“三带”划分。结果表明:31102工作面采空区进风侧散热带为20 m,氧化带为20~108 m,窒息带为>108 m;回风侧采空区散热带为20 m,氧化带范围为20~84 m,窒息带为>84 m。

In order to effectively analyze the distribution rules of the“three zones”of spontaneous combustion in 31102 goaf,the author presents the monitoring of the index gas by field air extraction with buried pipe,and classifies the“three zones”of spontaneous combustion by analysis of the high-temperature hazardous areas.The results show that the heat dissipation zone on the inlet side is 20 m,the oxidation zone from 20~108 m,and the suffocation zone is greater than 108 m;the heat dissipation zone on the return side is 20 m,the oxidation zone ranges from 20~84 m,and the suffocation zone is greater than 84 m.