瓦斯抽排巷长距离快速疏放采空区积水实践研究

Practice of Long-distance and Rapid Evacuation of Goaf Water in Gas Extraction Roadway

结合150804工作面水文地质条件,首次采取岩巷长距离、大规模集中探放老空水的方式疏放150802采空区(外段)积水,减少了探放采空区积水施工次数,提高了巷道掘进效率,同时保障了施工作业安全。以井下掘进工作面水害的安全防治为对象开展探究,结合具体工程实际,运用钻探方式,制定了针对性的水害防治措施,确保生产安全、持续开展的同时实现了对井下水害威胁的综合防治,对矿井综合效益的提升提供了积极助推。

Combined with the hydrogeological conditions of 150804 working face,the method of long-distance and large-scale concentrated exploration and drainage of old goaf water in rock roadway was adopted for the first time to drain the accumulated water in 150802 goaf(outer section),which reduced the number of construction times of exploration and drainage of accumulated water in goaf,improved the efficiency of roadway excavation,and ensured the safety of construction industry.With the safety prevention and control of water damage on underground driving face as the object of exploration,combined with the specific engineering practice,the use of drilling methods,the formulation of targeted water damage prevention and control measures to ensure the continuous and safety development of production,while realizing the comprehensive prevention and control of underground water damage threat,to provide a positive boost to the increase of the comprehensive benefits of the mine.