矿井瞬变电磁探测技术系统与应用

Mine transient electromagnetic technology system and its application

矿井瞬变电磁法作为一种非接触式探测技术,在矿井地质灾害源探测过程中发挥着重要的作用.受各种条件所限,目前所开展的井下瞬变电磁探测均使用非本安型仪器进行数据采集,因此存在着一定的隐患和不便.课题组在大量实验研究基础上,对采集设备、现场工作方法及数据处理关键技术进行研究,开发完成了国内第一款本安型矿井瞬变电磁仪器系统.通过与国内外相关仪器设备的探测对比实验,验证了本款仪器设备的可靠性,并形成了一套利用小线框、低功率,进行中等测深的矿井瞬变电磁探测技术,有针对性地解决井下巷道及工作面开采空间水害探查的相关技术问题.井下大量实验结果表明:YCS40(A)型仪器设备轻便、快捷、智能,适合于矿井多种水害防治探测技术应用,其效果显著.

As a kind of non-contact detecting technique, the mine transient electromagnetic methods have play an important role in forecasting geological disaster sources in mines. Limited by different conditions, the instruments of transient electromagnetic methods for data collection in mines are all non-mine intrinsic safe type. It has some hidden troubles and inconvenience for TEM technology application. On the base of many experiments and studies, the study team has carried on research about the collecting device, and the method of field work, and the key technology of data processing, and developed the first mine intrinsic safe type transient electromagnetic system of China. Through detection and contrast experiments with home and abroad relevant TEM instruments, YCS40 （A）rs reliability of performance is validated. And a suit of mine transient electromagnetic detection technology is formed by using small coils, small power and medium sounding. It can solve some technology problems of water disaster exploration during laneway tunneling and workfaee mining. The many results of the technical parameter contrast and detecting experiment in mines show that the YCS40 （A） type mine transient electromagnetic system has some merits such as handiness, shortcut and smart, and the technology is fit for all kinds of water disaster prevention and controlling. Its effect is obvious.