NEMV Technology Applied in the Six Mining Areas of Guandi Coal Mine
The geological structure of the six mining areas in Guandi Mine is complex with the development of small faults,folds and collapse columns,At the same time,due to the steep slope of the surface mountain and the development of vegetation,it is impossible to use three-dimensional seismic exploration technology for detection.In this case,the area is detected in using NEMV exploration techniques based on stress-natural electromagnetic pulses.The technology uses drones for data acquisition,not affected by ground conditions.It can accurately identify coal seam occurrence,geological structure and fine exploration of areas with unclear hydrological conditions such as goafs and collapse columns.It is divided by the abnormal distribution of the stress coefficient plan of each coal seam.A total of 1 goaf area,1 waterlogging area,3 water-bearing bodies,3 collapse columns,and 5 stress anomalous areas were found in the study area.It effectively solves the practical problems in coal mining.
NEMV geological exploration technologyGuandi in the sixth mining areaCollapse columnStress Abnormality
NETL
NSTL
万方数据
