高瓦斯矿井底抽巷区域消突技术实践研究

The Outburst Elimination Technique Research of Floor Drainage Lane with High Concentrated of Gas

为解决河南大峪沟煤业集团有限责任公司华泰煤矿工作面上隅角瓦斯浓度超限的问题,在12采区12030和12070工作面下部开展底板抽放巷、底板抽放巷穿层钻孔、并对底板抽放巷穿层钻孔进行水力冲孔卸压增透等措施。通过分析底抽巷区域消突工程可以从物理力学性质上增大二1煤层的孔隙率、透水性和润湿性。较大程度的提高了瓦斯抽采率,较好的解决了工作面和上隅角瓦斯浓度过大,为多构造突出矿井的安全高效生产提供了实践经验和理论参考。

In order to solve the upper corner gas concentration exceeds the limit in working face of Henan Da Yu Gou coal group co., LTD. Huatai coal mine,to carry out floor drainage lane、wear layer drilling floor drainage lane and floor drainage lane wear layer anti-reflection unloading hydraulic punching in for drilling measures at 12 mining area in 12030 and 12070 working face. Through the analysis of bottom engineering drainage area disappear Can increase the porosity Water permeability and wettability of二 1 coal from the physical and mechanical properties. Improve the gas extraction rate, Better to solve the problem of working face and the upper corner gas concentration is too large, Multiple tectonic highlight the mine safety and efficiency into production provides the practical experience and theoretical reference.