矿井超前钻孔的瞬变电磁响应研究

Study on Transient Electromagnetic Response of Advanced Boreholes in Mines

介绍了瞬变电磁法的基本原理,阐述了测点布置与施工方法、瞬变电磁数据处理流程等内容,通过实例对矿井超前钻孔的瞬变电磁响应特征进行了研究,总结提出了观察多测道剖面曲线中期是否存在典型的"凹"字形状、分析视电阻率等值线图中是否存在超前钻孔的响应特征这一识别方法,以期为日后工作的顺利进行提供参考。

This paper introduced the basic principle of transient electromagnetic method,expounded the layout and construction method of measuring points,the processing flow of transient electromagnetic data and so on.Combining with the examples,this paper studied the transient electromagnetic response characteristics of advanced borehole in mines and put forward a recognition method to observe whether there was a typical"concave"shape in the middle of the multi channel profile curve and analyze the response characteristics whether there were advanced boreholes in the apparent resistivity contour map,so as to provide references for the smooth progress of work in future.