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A Study on Application of Electrical Resistivity Survey to Detect the Leakage of Embankment with Weak Zone  

Park, Samgyu (Korea Institute of Geoscience & Mineral Resources (KIGAM))
Kim, Jaehong (Infra Structure Research Center Kwater)
Publication Information
Journal of the Korean GEO-environmental Society / v.14, no.4, 2013 , pp. 5-13 More about this Journal
Abstract
The water leakage of reservoir embankment usually occurs around channelling pipes, which gives little influence on the embankment in a normal state. However, the embankment can be destroyed when the water level of reservoir increases with heavy rain and the rainy season in summer. Investigating the water vein and its path is therefore very important from the viewpoint of disaster prevention and embankment maintenance. The water leakage in dams and levees where the channelling pipes are working as weak zone was analyzed by using both numerical simulation and experimental method in this study. To detect the water leakage, an electrical resistivity survey was used and investigated for its' usability. The numerical results show the size and location of weak zone increases the importance of selection of electrode spacing. The leakage experiments of model embankment present the best result is obtained under the conditions of electrode spacing of 0.3m and dipole-dipole array. By studying the water leakage in dams and levees, the electrical resistivity survey is observed it is a very useful method to predict the leakage.
Keywords
Weak Zone; Model Embankment; Electrical Resistivity Survey; Leakage; Dipole-dipole;
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Times Cited By KSCI : 1  (Citation Analysis)
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