煤炭工程 ›› 2026, Vol. 58 ›› Issue (6): 15-20.doi: 10.11799/ce202606003

• 设计技术 • 上一篇    下一篇

高突煤层小角度石门揭煤快速消突技术及应用

申振华,周东平,张书金,张 朋   

  1. 1. 贵州省能源智能开发与高效利用实验室,贵州 贵阳 550025

    2. 贵州省煤矿设计研究院有限公司,贵州 贵阳 550025

  • 收稿日期:2025-05-20 修回日期:2025-07-02 出版日期:2026-06-15 发布日期:2026-06-24
  • 通讯作者: 申振华 E-mail:shenzhenhua888@126.com

Application of rapid outburst elimination technology during small-angle cross-cut coal uncovering of a high-outburst seam #br#

  • Received:2025-05-20 Revised:2025-07-02 Online:2026-06-15 Published:2026-06-24

摘要:

针对小角度揭穿高突出危险煤层时,传统消突方法存在钻孔工程量大、瓦斯抽采效果差、区域消突达标周期长等技术难题,以新建煤矿三水平三采区轨道下山揭煤工作面为工程背景,创新提出“瓦斯抽采辅助巷+机械造穴增透”联合区域瓦斯治理模式;随后结合现场工程条件完成了辅助巷设计、钻孔布置方案、机械造穴施工工艺,配套确定了设备选型方案与施工流程,并开展了现场工程应用与治理效果对比分析。现场应用结果表明:与传统消突工艺相比,该方案钻孔工程量减少11544m,施工工期缩短2.92个月,节约综合成本38.7万元;单孔瓦斯抽采纯量平均提升3倍以上,抽采瓦斯浓度提高约78.57%;区域消突周期缩短78d,揭煤区域残余瓦斯含量降至3.52~4.63m3/t,煤层突出危险性完全消除,有效破解了小角度揭煤工况下传统消突工艺的局限性,实现了揭煤工作面的快速安全消突。

关键词:

石门揭煤, 小角度揭煤, 抽采辅助巷, 机械造穴, 卸压增透

Abstract:

This study aims to address the issues of large drilling volume, poor extraction effect, and long compliance time of traditional anti outburst methods when exposing high outburst coal seams from a small angle. By implementing a regional gas control model of gas extraction assisted roadway and mechanical hole making for enhanced permeability in newly built coal mines, an innovative and rapid gas outburst reduction technology path has been proposed. The research content includes auxiliary extraction roadway design, drilling layout, and mechanical hole construction technology, and a detailed analysis of their effects. The on-site application results show that this technology significantly reduces the amount of drilling work (reducing 11544m), improves gas extraction efficiency (increasing the average purity by more than three times), and shortens the regional outburst time (shortening 78 days). Comprehensive cost analysis shows that it can save 387000 yuan in costs compared to traditional methods. This study not only provides a safe and fast technical path for small angle coal mining faces to eliminate outbursts, but also has important significance for ensuring the overall safety and efficient production of mines.

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