万峰矿下组煤防治水技术研究

Study on Water Prevention Technology of Lower Coal Group in Wanfeng mine

万峰煤矿开采下组煤时,顶板上受太原组灰岩水涌入影响,底板有下伏奥灰水突水威胁,水文地质条件复杂。为保证矿井安全开采,通过分析矿井地质及水文地质条件和影响下组煤开采的涌水、突水因素,提出下组煤开采过程中的主要防治水技术工作要求,强调超前探测和注浆加固的重要性,为类似情况矿井提供经验借鉴。

In the process of lower coal group mining in Wanfeng Mine, Taiyuan group limestone water poured from the roof, floor threatened by Ordovician limestone water, with complex hydrogeological conditions. In order to guarantee the safe mining, through the analysis of mine geological and hydrogeological conditions and the influence of water inflow and water inrush factors of the lower coal group, the main work requirements of water prevention and control technology in the process of the lower coal group was put forward, the importance of advanced detection and grouting reinforcement was emphasized, which has guiding significance for safe production in Wanfeng Mine.