煤炭工程 ›› 2026, Vol. 58 ›› Issue (1): 101-107.doi: 10.11799/ce202601013

• 生产技术 • 上一篇    下一篇

基于"载荷三带"理论的掘进工作面冲击地压防治技术研究

孔 贺,谭花文,谭国龙,田国庆,张泽辉   

  1. 1. 通用技术集团工程设计有限公司,山东 济南 250031

    2. 山东双合煤矿有限公司,山东 济宁 272155

  • 收稿日期:2025-04-30 修回日期:2025-07-21 出版日期:2026-01-12 发布日期:2026-03-04
  • 通讯作者: 孔贺 E-mail:13188954577@163.com

Rockburst prevention technology in development headings based on the three-zone loading theory

  • Received:2025-04-30 Revised:2025-07-21 Online:2026-01-12 Published:2026-03-04

摘要:

针对大采深、断层构造与采空区侧向应力耦合作用下掘进工作面冲击地压防治的难题,采用理论分析、现场实测与工程反演相结合的方法,系统探究掘进工作面矿压显现规律,提出“钻-爆结合+反向掘进+定点补强支护”的冲击地压综合防治措施,实现了耦合高应力集中区的安全掘进。研究结果表明:基于“载荷三带理论估算,掘进工作面最大静载荷为45.67MPa,采空区侧向支承压力峰值距采空区60m;微震监测数据显示,微震事件主要集中在顶底板30m范围内,其中煤层顶板30m范围内微震事件能量占比40%、频次占比38%,该层位范围主要为煤层顶板23.6m13.4m厚的中砂岩,可为以关键层为导向的断顶施工参数优化提供依据;微震数据反演结果表明,在距3101采空区55~80m处存在应力积聚,与载荷三带理论计算的60m峰值位置基本吻合。

关键词: 载荷三带, 冲击地压, 掘进工作面, 耦合叠加, 微震监测, 钻-爆结合, 千米深井

Abstract:

Abstract: In response to the problem of preventing and controlling rockburst in excavation face under the coupling effects of large mining depth, fault structure, and lateral stress in goaf, the manifestation law of rock pressure in excavation face was analyzed through theoretical analysis, on-site measurement, and engineering inversion. Comprehensive measures for preventing and controlling rockburst, such as "drilling blasting" combination and fixed-point reinforcement support, were proposed to achieve safe excavation in the coupled stress affected area. The analysis results show that: (1) the maximum static load of the excavation face estimated based on the load three zone theory is 45.67 MPa, and the peak lateral support pressure in the goaf is 60 m away from the goaf; (2) The vibration events monitored based on microseismic data are mainly concentrated within a range of 30 meters from the top and bottom of the coal seam. The energy proportion of vibration events within a range of 30 meters from the coal seam roof is 40%, and the frequency proportion is 38%. The main layer within this range is 13.4 meters of medium sandstone, which provides guidance for the selection of parameters for roof construction under the influence of key layers; (3) Based on the inversion analysis of microseismic data, it is known that stress accumulation occurs at a distance of 55-80 meters from the track roadway, which is consistent with the 60 meter result calculated by the load three band theory.

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