煤炭工程 ›› 2026, Vol. 58 ›› Issue (3): 138-144.doi: 10.11799/ce202603017

• 生产技术 • 上一篇    下一篇

深部矿井沿空掘巷冲击地压致灾机理与综合防治技术

王建辉,马文涛,刘聚友,张 璐,赖 敏,陆泽淋,刘思宇   

  1. 1. 陕西麟北煤业开发有限责任公司,陕西 宝鸡 721000

    2. 中煤科工开采研究院有限公司,北京 100013

  • 收稿日期:2026-01-11 修回日期:2026-02-28 出版日期:2026-03-10 发布日期:2026-04-14
  • 通讯作者: 马文涛 E-mail:1412225958@qq.com

Rock burst mechanism and comprehensive prevention practices for roadway driving along goaf in deep mines

  • Received:2026-01-11 Revised:2026-02-28 Online:2026-03-10 Published:2026-04-14

摘要:

针对深部特厚煤层沿空掘巷存在动静载叠加、覆岩结构复杂等致灾风险,以陕西麟北煤业园子沟煤矿1012006工作面为工程背景,综合运用数值模拟、理论分析和现场实测方法,系统研究沿空掘巷冲击地压的致灾机理与分源防控技术。研究结果表明:沿空巷道受侧向采空区“F”型覆岩结构和宽煤柱“弹性核”共同作用,形成高静载与动载叠加的应力环境,这种环境极易诱发冲击地压。基于此,本文提出了“优化设计—分源卸压—强化支护”的多层级防控体系,该体系包含工作面切眼位置优化、大直径钻孔分区卸压以及锚网索协同支护等关键技术。现场应用表明,该防控体系能够显著降低微震能量释放、有效缓解应力集中,进而控制巷道变形,实现了冲击风险的主动防控。该研究为类似地质与开采条件下的冲击地压防治提供了理论依据和实践参考。

关键词: 深部开采, 沿空掘进, 冲击地压, 危险性分析, 分源防治, 大直径卸压钻孔

Abstract:

In response to the disaster risks faced by deep, extra-thick coal seams along development roadways, such as the superimposition of dynamic and static loads and complex overlying rock structures, this paper takes the 1012006 working face of Yuanzigou Coal Mine in Linbei, Shaanxi, as the engineering background. A combination of numerical simulation, theoretical analysis, and field measurement methods was used to systematically study the disaster mechanism and source-specific prevention and control techniques for rock bursts along development roadways. The results show that the lateral gob 'F'-type overlying rock structure and the wide coal pillar 'elastic core' jointly affect the development roadway, creating a stress environment with superimposed high static and dynamic loads, which easily induces bursts. A multi-level prevention and control system of 'optimized design–source-specific pressure relief–reinforced support' was proposed, including key technologies such as optimization of the cut positions in the working face, zoned pressure relief with large-diameter boreholes, and coordinated anchor-net and cable support. Field applications indicate that this system can significantly reduce microseismic energy release, alleviate stress concentration, effectively control roadway deformation, and achieve proactive rock burst risk prevention. This study provides theoretical basis and practical reference for the prevention and control of rock bursts under similar geological and mining conditions.

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