煤炭工程 ›› 2026, Vol. 58 ›› Issue (1): 143-151.doi: 10.11799/ce202601018

• 研究探讨 • 上一篇    下一篇

工作面开采顶板突水溃砂机理及防控技术研究进展

李晓欢,李宏杰,杜明泽   

  1. 1. 煤炭科学研究总院,北京 100013

    2. 煤炭科学技术研究院有限公司,北京 100013

  • 收稿日期:2025-06-19 修回日期:2025-12-01 出版日期:2026-01-12 发布日期:2026-03-04
  • 通讯作者: 杜明泽 E-mail:dumingze0910@163.com

Research Progress on the Mechanism and Control of Water and Sand Inrush from the Roof of Coal Mining Working Faces

  • Received:2025-06-19 Revised:2025-12-01 Online:2026-01-12 Published:2026-03-04

摘要:

煤矿顶板突水溃砂灾害机理复杂,且防控难度高。针对工作面开采时突水溃砂灾变征兆不明显、瞬时突涌量大、难以预测预报等问题,从水文地质条件、灾变机理、防控技术和监测预警等方面总结突水溃砂灾害研究进展。选取典型浅埋薄基岩采场、深埋弱胶结岩层采场、近松散层采场突水溃砂工程案例,分析典型突水溃砂水文地质条件及灾变特征,总结突水溃砂发生的基本条件,阐述不同沉积环境下突水溃砂灾变机理。突水溃砂受沉积环境和采动条件共同影响,沉积环境提供水砂来源与动力环境,采动决定水砂通道形成及突水溃砂启动条件。针对三种类型突水溃砂致灾模式,阐述了含水层改造、常规疏水降压、地面直通泄水孔和“预置导流管+扇形疏放水”等防控技术。在此基础上,结合井上下多物理场监测数据,构建“感知-预警-决策”智能化预警防控架构,形成工作面顶板突水溃砂动态监测-预警-防控技术体系,并指出突水溃砂防治的发展方向。

关键词: 顶板水害, 突水溃砂, 致灾机理, 防控技术, 监测预警

Abstract:

The mechanisms of water and sand inrush disasters in coal mines are complex, and their prevention and control pose significant challenges. To address issues such as the inconspicuous disaster precursors, large instantaneous inrush volumes, and challenges in prediction and forecasting during mining operations, this study summarizes research progress from the perspectives of hydrogeological conditions, disaster mechanisms, prevention and control technologies, and monitoring and early warning systems. Typical engineering cases of water and sand inrush are selected from shallow-buried thin bedrock mining areas, deep-buried weakly cemented rock layers, and mining areas near loose strata. The analysis elucidates typical hydrogeological conditions and disaster characteristics, summarizes the necessary conditions for their occurrence, and explains the mechanisms of water and sand inrush under different sedimentary environments. Water and sand inrush results from the combined influence of sedimentary environments and mining activities. Sedimentary environments provide the source and dynamic conditions for water and sand, while mining activities determine the formation of water and sand pathways and the initiation conditions. For three identified disaster-inducing modes, this study discusses prevention and control technologies, including aquifer modification, conventional dewatering and pressure reduction, surface direct drainage holes, and pre-installed diversion pipes combined with fan-shaped drainage. Based on this foundation and integrating multi-physical field monitoring data from both surface and underground, an intelligent "perception-early warning-decision" prevention and control framework is proposed. This forms a comprehensive technical system for the dynamic monitoring, early warning, and prevention of water and sand inrush from the roof strata of working faces, while also outlining future development directions.

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