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Electrical Resistivity Tomography of the Frozen Embankment Dam
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Engineering and Mining Geophysics 2020, Sep 2020, Volume 2020, p.1 - 8
Abstract
Summary
Soil thawing occurred during the operation of the frozen embankment dam. This led to the formation of leaks through the dam body and at the foundation along the fault in bedrocks. The main goal of the research was to identify leak locations for planning wells of the groundwater cut-off. Electrical resistivity tomography was carried out over parallel survey lines, 3-D inversion was performed, and electrical resistivity maps at depths of 4, 10, and 20 m were made. Anomalies of low electrical resistivity showed the line of water filtration in the body of the dam body and foundation. The 3-D model provide insight into thawing from the upper pool and filtering along the fault.
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