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Grigoriev D. V., Vedernikov A. S.
Application of electrical survey methods for studying the earth dam
DOI: 10.21443/1560-9278-2026-29-2-265-274
Abstract. The stability of an earth dam may be compromised by water erosion and seepage, which primarily affect the distribution of specific electrical resistivity within the dam's soil. This paper presents the results of complex geophysical electrical surveys of the dam body conducted to monitor potential water seepage through its clay screen. The study presents investigations using two electrical survey methods: the self-potential method and electrical tomography. The self-potential method is a passive electrical survey method that determines the potentials arising in the rock mass due to the transport of charges by moving water flows. Analysis of the self-potential field method data has identified a zone of high potential values – the length of this section exceeds 400 m, and the potential values exceed 60 mV. Electrical tomography allows the structure of the rock mass to be determined based on the distribution of the specific electrical resistivity of the rocks. The results of the electrical tomography have indicated that the dam body and the bedrock at its foundation are saturated with water almost everywhere. Processing and interpretation of the measurement data have made it possible to identify potential problem areas for water seepage.
Printed reference: Grigoriev D. V., Vedernikov A. S. Application of electrical survey methods for studying the earth dam // Vestnik of MSTU. 2026. V. 29, No 2. P. 265-274.
Electronic reference: Grigoriev D. V., Vedernikov A. S. Application of electrical survey methods for studying the earth dam // Vestnik of MSTU. 2026. V. 29, No 2. P. 265-274. URL: https://vestnik.mauniver.ru/v29_2_n108/09_Grigoriev_265-274.pdf.
