Pseudo-3D dual-frequency induced polarization for dam leakage detection

Summary The dual-frequency induced polarization method has been applied in geophysical exploration for many years. Pseudo-3D dual-frequency IP array has also been improved based on the traditional 2D IP data acquisition system. In this study, we employed the method in the dam leakage detection. However, due to the limitation of the topography of the surveying field, 3D array is not the efficient way to acquire the dam leakage data. Based on the 3D resistivity cube, we infer the channel of the leakage in the dam. We give two possibilities of the dam leakage path.