Application of High-density Electrical Method in Goaf Detection of a Gold Mine in Dashiqiao,Liaoning Province
Due to the change of mining rights and other reasons,the underground mining backfill situation in some areas of a gold mine in Dashiqiao,Liaoning Province,was unclear,and local goaf threatens mine production safety.Six high-density electrical sur-vey lines were laid in the area,and 4 abnormal areas of high and low resistance were delineated.The abnormal areas were inferred to be electrical differences between the surrounding orebodies and the backfill.It was proved by drilling in the pit that there was loose backfill gangue in abnormal area of G1 line by high-density electrical method,and the anomaly delineation effect was good.The measurement results of high-density electrical method had important reference significance.