大佛寺煤矿主要水害类型及防治工程实践

The main types of water hazards in Dafosi Coal Mine and the practice of prevention and control engineering

陕西彬长大佛寺煤矿水文地质条件较为复杂,多年的开采实践过程中,曾发生多次水害事件,严重威胁人员安全并影响矿井正常生产。尤其是近年来复合开采条件下,水害影响由单纯延安组弱含水层水害变为洛河组含水层与离层水害叠加影响以及侧向、上覆采空区水害威胁。通过系统分析矿井的水文地质条件,以实际工作面揭露情况总结出各类型水害的表现特征,并以现场实际应用为基础,列举各类水害防治的典型案例。基于多种水害综合分析,总结出大佛寺煤矿切实有效的防治水措施,科学指导矿井防治水工作,并为彬长矿区条件相似矿井提供参考。

The hydrogeological conditions of the Binchang Dafosi Coal Mine in Shaanxi are relatively complicated.In the course of many years of mining practice,there have been many water hazards,which seriously threatened the safety of personnel and affected the normal production of the mine.Especially under the conditions of compound mining in recent years,the impact of water hazards has changed from simply the water hazard in the weak aquifer of the Yan’an formation to the superimposed impact of the water hazard in the Luohe formation aquifer and the separated water hazard,as well as the lateral and overlying goaf water hazards.Through systematic analysis of the hydrogeological conditions of the mine,the performance characteristics of various types of water hazards are summarized based on the actual working face exposure,and based on the actual application of the site,typical cases of various types of water hazard prevention and control are listed.Based on the comprehensive analysis of multiple water hazards,the practical and effective water control engineering practice in Dafosi Coal Mine was summarized,scientifically guided mine water control work,and provided reference for mines with similar conditions in Binchang mining area.