瞬变电磁法在工作面防治水中的应用

Application of transient electromagnetic method in water prevention and control of working face

水害是威胁矿井安全生产的重要灾害之一,因水害造成矿井停产,甚至淹井事故时有发生。根据瞬变电磁法的探测原理,大佛寺煤矿将其引入40111工作面的水文地质勘探中,对巷道迎头及两侧进行超前探测,探查工作面在掘进期间巷道迎头及两侧的富水情况,为巷道掘进期间的防治水工作提供技术依据,避免工作面在掘进期间受到水害影响造成停产等事故。通过后期对电阻异常区域进行钻探验证,表明该方法是一种非常有效的物探手段,对矿井防治水害有着明显的效果。该方法可以为矿井水害预测预报及防治提供可靠依据,并且为相似条件工作面的防治水具有一定指导作用。

Water disaster is one of the main disasters threatening mine safety production.Mine shutdown and even mine flooding accidents caused by water disaster occur from time to time.According to the detection principle of transient electromagnetic method,Dafosi Coal Mine introduces it into the hydrogeological exploration of 40111 working face to detect the roadway in advance,so as to provide technical basis for water prevention and control during roadway excavation and avoid accidents such as shutdown caused by water disaster.Through the later drilling verification in the area with abnormal resistance,it shows that this method is a very effective geophysical exploration method,has an obvious effect on the prevention and control of mine water disaster,which can provide a reliable basis for the prediction and prevention of mine water disaster,and has a certain guiding role for the water prevention and control in working faces under similar conditions.