| Autor: |
Zhaoqiao Zhang, Lian Liu, Yong Zhang, Shucai Liu, Longjin Zheng |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Technology and Application of Environmental and Engineering Geophysics ISBN: 9789811032431 |
| DOI: |
10.1007/978-981-10-3244-8_3 |
| Popis: |
The transient electromagnetic is one of the important geophysical methods, widely used in various fields, but there exist some problems when solving engineering geophysical problems. In response to this shortcoming, several methods are proposed for TEM imaging (dynamic multi-channel curves, Dynamic induced electromotive force contrast curve, dynamic apparent resistivity and dynamic resistivity depth map) to solve the problem of detecting at the scene quickly finding horizontal location and depth of metal pipe and other engineering problem in cities. And TEM has a relatively deep depth compared with metal pipe instrument and get more information about the features of subsurface. Finally, transient electromagnetic method proved quick detection the metal pipe problem through the detection experiments and several dynamic imaging method of metal tube. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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