Electrical Resistivity Imaging for Detecting Soil Cracking at the Centimetric Scale

• DOI: 10.2136/sssaj2003.1319
• Publication Date: 2010-07-27T21:21:52Z
• Authors: Anatja Samouëlian; Isabelle Cousin; Guy Richard; Alain Tabbagh; Ary Bruand
• Keywords: Electrical Resistivity Tomography; Silt

Electrical resistivity measurements at high resolution (1.5‐cm electrode spacing) were performed to detect, from the soil surface, small cracks developing within soil. We recorded a vertical electrical pseudo‐section in decimetric undisturbed homogenous block (silt loam) for different artificial cracking stages. Because of unusually reduced spacing associated with an air‐dried specific Cu/CuSO 4 was designed precision wet contact given points. The apparent and interpreted data inverted by using Res2Dinv software are discussed. range is considerable, (from 168 2185 Ω m) because filled air that infinitely resistant medium. Results showed even structures cause perceptible changes can be detected method. also required predict real crack depth.