下保护层开采瓦斯治理技术研究

Research on the Gas Control in the exploitation in the Lower Protective Layer Mining

针对下保护层开采时被保护层瓦斯通过裂隙通道进入保护层工作面的问题,综合研究分析,提出底抽巷对被保护层进行抽采方案。实践结果表明:该方案不仅可以预防瓦斯涌入保护层,并且可以对被保护层的瓦斯直接预抽消突,也为相似矿井的瓦斯治理提供了宝贵经验。

In view of the lower the problem that protective gas goes through fracture channel into the protective layer, and after comprehensive research and analysis, the to drain the protective layer at the bed plate tunnel is put forward, and practice results show that the scheme can not only prevent the gas into protective layer, but also can eliminate the gas outburst in be protective layer directly, which provides valuable experience for the solution to similar mine gas control problem .