Application of Transient Electromagnetic Method in Mine to Predict Coal Seam Interruption Layer in Advance
In coal mining,faults with a thickness exceeding 1/2 of the coal seam will greatly affect the smooth progress of coal mining work.Therefore,coal mining enterprises need to predict faults in advance during production,in order to prevent the occurrence of faults in advance.Through exploration,it was found that the transient electromagnetic method in mines can effectively predict faults in coal seams.Its principle is to generate and return secondary field signals by receiving magnetic field signals emitted from the coal layers in the detection direction,and obtain relevant geological information.The transient electromagnetic method utilizes a multi turn overlapping loop device,multi sector and multi angle detection technology,curve anomaly patterns,and longitudinal and transverse slicing technology to predict faults in front of mine tunnels.Practical applications have shown that selecting the transient electromagnetic method for advanced detection in mines can effectively predict hidden faults and other structures,which helps guide coal mine safety production.
minetransient electromagnetic methodadvance predictionvertical and horizontal slicing
NETL
NSTL
万方数据
