As the hinge of electric power, the mine substation is one of the main objects that the safe production takes charge of.

Daliuta Coal Mine is leading the colliery complete automation system,and was the first one to operate the underground substation without local operator,and the "thr.

In order to improve reliability and real-time of detection data and control data of underground substation,the paper proposed a design scheme of remote monitoring and control system of underground substation based on CAN bus and Ethernet.

The radio-wave penetration method can detect the relative locations of abnormal structures such as collapse columns,faults and thin coal layer areas,and the mine transient electromagnetic method can estimate the water-containing situation of these structures based on the variation of the resistivity in the detection range.

Then,it summarizes the present situation of geophysical methods,and presents an introduction to some methods such as mine direct current method,mine transient electromagnetic method and geological radar exploration.

This paper discusses the utilization of the mine transient electromagnetic method to detect the location of hydrological borehole that lies in the coal layer or in front of the laneway,and gives a qualitative appraisal of its hydrous characteristics.

In this paper,the principle of mine transient electromagnetic method(MTEM) is introduced.

Application of mine electrical method in exploring the break-out-water collapse column in Renlou Mine;