近距离下保护层工作面穿层钻孔抽采效果分析

Analysis of gas extraction effect of crossing hole in short-distance lower-protective stratum working face

针对近距离下保护层工作面瓦斯抽采穿层钻孔参数优化问题,采用相似材料模拟、钻孔抽采瓦斯数据分析、示踪气体测试等方法,研究了近距离岩石保护层工作面顶板裂隙及瓦斯运移规律,研究结果可以为近距离下保护层工作面瓦斯抽采穿层钻孔参数设计提供依据。

Aiming at the parameters optimization problem of gas extraction crossing holes in short-distance lower-protective stratum working face,similar materials simulation,data analysis of borehole gas extraction,tracer gas test and other methods were used to study the laws of roof fracture and gas migration in short-distance protective rock stratum working face,the study results provided the basis for parameters design of gas extraction crossing holes in this kind of working face.