NEMV技术在官地矿中六采区的应用

NEMV Technology Applied in the Six Mining Areas of Guandi Coal Mine

官地矿中六采区地质构造复杂,小断层、褶曲、陷落柱发育,同时由于该区域地表山高坡陡,植被发育,无法采用三维地震勘探技术进行探测,在此情况下,使用基于应力-自然电磁脉冲的NEMV技术对该区域进行探测。该技术采用无人机进行数据采集,不受地面情况影响,能够准确查明煤层赋存、地质构造形态,并对采空区、陷落柱等水文条件不清的区域进行精细探查。通过各煤层应力系数平面图异常分布进行划分,在研究区内共发现采空区1处,积水区1处,陷落柱2个,有效解决了煤矿开采中的实际问题。

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.