The detection of water abundance in the roof and floor strata of mines is a key aspect of water prevention and control work in mines.With transient electromagnetic technology,the water abundance in the roof and floor strata of the main haulage roadway of a certain iron mine in the middle section of-230 m is detected.Based on transient electromagnetic response data,the water abundance anomaly areas are analyzed in different detection directions,and the water abundance areas are delineated using three-dimensional imaging technology.The results show that there are two areas with abnormal water abundance at-230 m,mainly in the areas with abnormal water abundance with horizontal distances of 0～40 m,80～110 m and 140～190 m,and longitudinal distance of 20～40 m,as well as in the areas with abnormal water abundance at the roof direction with horizontal distances of 40 m to 200 m and longitudinal distances of 80～100 meters.This can effectively guide the water prevention and control work in mining areas.
关键词
瞬变电磁法/顶底板岩层/富水异常区/三维成像
Key words
transient electromagnetic method/roof and floor strata/area with abnormal water abundance/three-dimensional imaging
维普
万方数据