煤炭工程 ›› 2026, Vol. 58 ›› Issue (1): 59-67.doi: 10.11799/ce202601008

• 施工技术 • 上一篇    下一篇

迎采对掘巷道分区破坏演化机理与卸压-顶帮底联动控制技术研究

任 强,曹 闯,谢正正,武文君,杨 勇,向喜伟   

  1. 1. 宁夏红墩子煤业有限公司,宁夏 银川 750001

    2. 中国矿业大学 矿业工程学院,江苏 徐州 221116

  • 收稿日期:2024-10-17 修回日期:2025-06-25 出版日期:2026-01-12 发布日期:2026-03-04
  • 通讯作者: 曹闯 E-mail:932922705@qq.com

Zonal failure evolution mechanism and technology of pressure relief and roof-sidewall-floor linkage control for head-on mining roadways

  • Received:2024-10-17 Revised:2025-06-25 Online:2026-01-12 Published:2026-03-04

摘要:

为解决迎采对掘巷道多重叠加应力扰动而产生大变形的问题,以红一煤矿1150403工作面回风巷为工程背景,结合钻孔窥视与数值模拟,对试验巷道采动影响下的四种分区破坏特征进行了系统研究。研究表明:强采动应力、软岩赋存、支护结构不合理等是巷道产生分区破坏的关键因素。因此,提出了“切顶应力调控+分区治理+注浆重构+多级协同加固”的巷道控制策略,形成了卸压-顶帮底联动控制技术。模拟与现场监测表明:直切顶卸压-顶帮底联动控制方案降低了巷道应力峰值10.29%以上,减少了应力集中面积54.25%以上,顶底板和两帮移进量分别减少了79.2%53.8%,显著提升了围岩控制效果。

关键词: 迎采对掘, 分区破坏, 切顶卸压, 注浆重构, 围岩控制

Abstract:

In order to solve the problem of large deformation caused by multiple superimposed stress disturbances in facing excavation roadway, a systematic study was carried out on the four kinds of partition failure characteristics under the influence of mining in the test roadway by combining on-site testing and numerical simulation with the engineering background of the return roadway of the working face of Hongyi Coal Mine 1150403. The study shows that the strong mining stress, soft rock, and inappropriate support structure are the key factors for the partition failure of the roadway. Therefore, the roadway control strategy of ‘roof-cutting stress control + partition management + grouting reconstruction + multi-stage coordinated reinforcement’ is proposed, which forms the linkage control technology of pressure relief-roof to bottom. Simulation and on-site monitoring show that the new scheme reduces the peak stress of the roadway by more than 10.29%, reduces the stress concentration area by more than 54.25%, and reduces the amount of roof and floor and the two ribs shifting by 79.2% and 53.8%, respectively, which significantly improves the effect of the peripheral rock control, and ensures the safety and stability of the peripheral rock of the roadway in the whole process of the mining and excavation.

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