基于烟圈效应的老空水瞬变电磁探测技术研究

Research on Transient Electromagnetic Detection Technology of Goaf Water Based on Smoke Ring Effect

介绍了基于烟圈效应瞬变电磁技术的基本原理,针对山西常蒋煤矿3101工作面老空积水危害问题,提出了减少、削弱瞬变电磁探测干扰因素的具体措施,并设计了高精度探测方案。探测数据稳定、质量高,视电阻率低阻异常区明显。经后期钻探,出水点与探测情况一致,该方法准确、可靠,是煤矿老空区防治水工作中一种有效技术手段。

It introduced the basic principle of the transient electromagnetic detection technology based on smoke ring effect. Aiming at the problems of water hazards in goaf on 3101 working face in Changjiang Coal Mine,it had given some specific measures to reduce the interference factors of transient electromagnetic detection,and also had designed a scheme of high precision detection. The detection data is stable,high quality and apparent resistivity for low resistivity. Then,where there is water is consistent with the detection. The method is accurate and reliable,is also an effective technical means for the water prevention work in goaf.