煤矿老空水害治理中定向钻进与分段注浆协同技术研究

Research on the Coordinated Technology of Directional Drilling and Segmented Grouting in the Treatment of Water Hazards in Old Coal Mine Voids

摘要

本文针对煤矿老空水害治理难题，及传统防治水技术探查精度不足、治理效果差的局限，研究定向钻进与分段注浆协同技术。老空水害为煤矿主要安全威胁，透水事故占比超 90%，山西王家岭、太原李家楼煤业等事故凸显技术研发紧迫性。定向钻进精准控轨迹、获水害信息，分段注浆依此针对性作业，二者协同解决钻孔与注浆问题，还明确施工方案及关键要点。华北某煤矿应用后，涌水量从50m³/h降至5m³/h以下，老空水被封，但存在设备成本高、浆液扩散难控问题。该技术前景广，未来可通过设备研发、技术优化、拓展应用提升效能。

Abstract

This article focuses on the difficult problem of water damage control in old coal mine voids, as well as the limitations of traditional water prevention and control technologies such as insufficient exploration accuracy and poor treatment effects. It studies the collaborative technology of directional drilling and segmented grouting. Old air water damage is the main safety threat to coal mines, with water seepage accidents accounting for over 90%. Accidents such as Wangjialing in Shanxi and Lijialou Coal Industry in Taiyuan highlight the urgency of technological research and development. Directional drilling accurately controls the trajectory, obtains water hazard information, and performs segmented grouting according to targeted operations. The two work together to solve drilling and grouting problems, and also clarify the construction plan and key points. After being applied in a coal mine in North China, the water inflow rate decreased from 50m ³/h to below 5m ³/h, and the old empty water was sealed, but there were problems such as high equipment costs and difficult control of slurry diffusion. This technology has broad prospects and can improve efficiency through equipment research and development, technological optimization, and expanded applications in the future.

关键词

煤矿老空水害 / 协同技术 / 工程案例 / 治理效果

Key words

coal mine old air water damage / collaborative technology / engineering case / governance effect

参考文献

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