Transient electromagnetic dynamic monitoring technology for variation law of water enrichment in multiple aquifers of coal mine
In the process of coal mining,the stress balance of the roof and floor is seriously damaged,which leads to the de-velopment of fractures,the formation of separated water or the conduction of concealed structures,etc.,and then causes the mine water inrush disaster.Most of these disasters are lagging water inrush,which has great harm to coal mine safety produc-tion.The static detection before mining by traditional geophysical prospecting methods can not solve this problem by delinea-ting the water-rich anomaly area.In order to solve the problem,the transient electromagnetic method can be used to dynami-cally monitor the change law of water enrichment of multiple aquifers in the coal mine,so as to achieve the purpose of pre-venting the delayed water inrush disaster.The application example shows that the transient electromagnetic dynamic monito-ring of the change law of water enrichment in multiple aquifers has achieved gooddetection results,and is worth popularizing in the prevention of delayed water inrush disasters in coal mines.
万方数据
维普
