汾源煤业5-1022回风巷道顶板淋水封堵技术研究

Study on Roof Water Pouring Plugging Technology of the 5-1022 Return Air Roadway in Fenyuan Coal Industry

为解决巷道顶板淋水带来的安全隐患,以5-102工作面回风巷为工程背景,开展巷道顶板淋水注浆封堵技术研究。通过观测巷道围岩裂隙发育特征,设计了巷道注浆封堵方案以及注浆封堵工艺。最后通过钻孔窥视和顶板淋水统计分析注浆封堵的效果。结果表明,巷道围岩导水裂隙封堵效果良好,封堵段巷道顶板淋水现象明显减少。

In order to solve the potential safety hazard caused by the roof water pouring,taking the return air roadway of the 5-102 working face as the engineering background,the research on the grouting plugging technology of the roof water pouring in the roadway is carried out.By observing the development characteristics of surrounding rock fissures,the grouting plugging scheme and grouting plugging technology are designed.Finally,the grouting plugging effect is analyzed by drilling peep and roof water drenching statistics.The results show that the sealing effect of water flowing fissures in surrounding rock is good,and the phenomenon of roof drenching in sealing section is obviously reduced.