Utilização de Potencial Espontâneo e Caminhamento Elétrico para detecção de vazamentos em barragem

Geohysical methods like dipole-dipole geoelectric profiling, and spontaneous potential measurements with non polarizable electrodes were used to identify possible zones of leakage or infiltration by water, occurring in dam structure of artificial lake in Itatiba city-SP. Electroresistivity profiling in dipole-dipole array, and spontaneous potential determinations in gradient mode allowed to identify anomalous zones with low values of resistivity and spontaneous potentials.<br>Resistivity data processing by an inversion software RES2Dinv provided true electrical resistivity values in five levels of investigation depth.