Abstract
Based on the study of geophysical characteristics of embankment leakage, this paper adopts Dual coil transient electromagnetic (Dual TEM) and parallel direct current resistivity method(PDC) to carry out comprehensive detection. Dual TEM can greatly reduce the shallow blind area of conventional transient electromagnetic and improve the resolution of induced signal, PDC method can efficiently collect signals of all electrical arrange and spontaneous potential signals, By using the cross-correlation processing technology between spontaneous potential and resistivity data. we quickly eliminate the false abnormal influence of low resistivity in embankment, it is a good application in the detection of Paihe embankment leakage in Hefei, Anhui Province in 2020.
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