Yuping Gao1,2, Jinyu Gao2, Jianhua Yue1* and Yuanzhi Zhang3*

There were a lot of water hazard accidents in coal mines, due to the lacking of effective methods for the coalfield surveying. The transient electromagnetic approach is one of such methods and was applied to examine the safety surveying of coal mine in the Datong coal mines during last two decades. Although there had been many successful cases of using the methods to the surveying of gobs water, meanwhile there were some difficulties to accurately detect and measure the size and location of gob water points, which still need to refine the advance of transient electromagnetic method.

Keywords: Transient Electromagnetic, Datong, Successful Cases, Difficult Problems, Advance

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