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http://dx.doi.org/10.9719/EEG.2013.46.2.105

Investigation of Water Leakage in Seosan A-Region Sea Wall using Integrated Analysis of Remote Sensing, Electrical Resistivity Survey, Electromagnetic Survey, and Borehole Survey  

Hong, Seong-In (Department of Geology and Earth Environmental Sciences, Chungnam National University)
Lee, Dongik (Chungnam Regional Headquarters, Korea Rural Community Corporation)
Baek, Gwanghyun (GSE CO., LTD.)
Yoo, Youngcheol (Industrial Research Center, Jungwon University)
Lim, Kookmook (Hanse GeoEngineering CO., LTD.)
Yu, Jaehyung (Department of Geology and Earth Environmental Sciences, Chungnam National University)
Publication Information
Economic and Environmental Geology / v.46, no.2, 2013 , pp. 105-121 More about this Journal
Abstract
This study introduces integrated approach on detection of a leakage in a sea wall based on remote sensing, electric resistivity survey, electromagnetic survey, and borehole survey for the Seosan A-Region sea wall. The satellite temperature distribution from Landsat ETM+ data identifies water leakage distribution and period by analyzing temperature mixing patterns between sea water and fresh water. Electric resistivity survey provides both horizontal and vertical anomaly distributions over the sea wall showing below average electric resistivity. Electromagnetic survey(electrical conductivity survey) reveals the potential possible leakage areas with minimal background impact by comparing electrical conductivity values between high and low tides. Borehole image processing system confirmed the locations of anomalies identified from the other survey methods and distributions of vertical fracture zones. The integrated approach identified 41.7% of the sea wall being the most probable area vulnerable to water leakage and effectively approximated both horizontal and vertical distribution of water leakage. The integrated analysis of remote sensing, electric resistivity survey, electromagnetic survey and borehole survey is considered to be an optimal method in identifying water leakage distribution, period, and extent of fractures knowledged from the boreholes.
Keywords
remote sensing; electric resistivity survey; electromagnetic survey; borehole survey; integrated approach; Seosan A sea wall;
Citations & Related Records
Times Cited By KSCI : 14  (Citation Analysis)
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