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| THE APPLICATION OF THE HIGHCURRENT ANDSMALL COIL TRANSIENT ELECTROMAGNETIC METHOD (TEM) TO THE DETECTION OF CONCEALED FAULTS |
YANG Nonghe 1，WANG Hui 2，XU Xiaoli 3，WU Chaojun 4，YANG Ningning 4，WANG Baochen 2 |
| 1. Xi'an University of Technology, Xi'an710048，China；2. No. 4 Hydrogeological Party, China National Administration of Coal Geology, Handan056001，China；3.Xi'an Institute of Geology for Mineral Development, Xi'an710100，China；4. School of Electrical Engineering, Xi'an Jiaotong University, Xi'an710049，China |
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Abstract The transient electromagnetic method (TEM) using the highcurrent and small coil is a mature technology in the prospecting for metallic ore deposits and groundwater. Based on many years' experimental studies, the authors analyzed the causes of negative value V2 (Induction of secondary field) at the top of the fault and put forward the exploration and dataprocessing means for faults, new faults and geological collapses. This paper summarizes the method of TEM for determining concealed active faults (CAF) . Drilling has demonstrated that this method is convenient in accurate determination of CAF.
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Received: 08 March 2010
Published: 10 February 2011
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