Correlation between Hydraulic Conductivity and Electrical Conductivity for Porous Media

다국어 초록 (Multilingual Abstract)

Hydraulic conductivity (permeability) is a very important physical property in geotechnical engineering. Monitoring of the hydraulic conductivity is useful for evaluating the ground condition by nondestructive methods. An electrical conductivity measurement technique can be applied to infer hydraulic conductivity. The goal of this study is theoretically to correlate the hydraulic conductivity and electrical conductivity for porous materials and to verify the developed correlation. The verification process is carried out through experimental tests involving glass beads and Joomunjin standard sand. The test variables are the electrical conductivity of the pore fluid, the porosity, and the particle size. The test results show that the estimated hydraulic conductivity realized by the developed correlation is in good agreement with the measured hydraulic conductivity results. Therefore, this preliminary study provides evidence of the strong possibility of the electrical conductivity being feasible for use to monitor the hydraulic conductivity of porous materials.