矿用孔-巷瞬变电磁系统在煤矿的试验应用

Application of Mine-used Hole and Roadway Transient Electromagnetic System in Coal Mine

设计了一种矿用孔-巷瞬变电磁设备。与传统的矿用瞬变电磁仪器相比,此次研制的设备在探测精度上有较大的提高,采用了井下巷道发射,钻孔接收的方式,借助钻孔岩层的屏蔽作用能够很大程度上降低接收信号时工作面的外部干扰,提高探测的精度,确保安全高效的开采。介绍了矿用孔-巷瞬变电磁系统在煤矿的探测应用,主要介绍整个系统的工作原理、及试验测试情况,试验结果表明矿用孔-巷瞬变电磁系统能够更精准的反映地质异常的位置。

In the article, hole-roadway transient electromagnetic apparatus for coal mine is designed. Compared with the traditional mine transient electromagnetic instrument, the device greatly improves the detection accuracy. Using the way of underground tunnel transmitting and receiving drilling, the shielding effect of the borehole layer can greatly reduce the external interference of the working face during receiving the signal and improve detection accuracy, to ensure safe and efficient mining. This paper introduces the detection applications of mine-used hole-roadway transient electromagnetic system in this area, mainly introduces the working principle of the whole system, and the test case, and the test results show that it can more accurately reflect the geological abnormal position.