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| THE EFFECTS OF APPLYING THE PROTEM67D TRANSIENT ELECTROMAGNETIC EXPLORATION SYSTEM TO DETECTING MULTILAYER MINED-OUT AREA |
| ZHANG Yun-xia |
| Geophysical Prospecting and Surveying Party, Henan Bureau of Coal Geology, Zhengzhou 450009, China |
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Abstract In the detection of the mined-out area in a coal mine of western Linfen, the author used the PROTEM67D transient electromagnetic exploration system, selected suitable work facilities and, through scientific experiment, determined the appropriate work parameters. According to an analysis of the transient electromagnetic electric characteristics of the local known mined-out area, the interpretation method was established for the apparent resistivity variation range suitable for the division of the mined-out area, the analysis and interpretation of the electric character sectional drawing for the whole exploration area were conducted and, on such a basis, the limits of the mined-out area and the mined-out waterlogged area were delineated. It is proved that the geological effects are satisfactory.
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Received: 28 November 2012
Published: 10 February 2014
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