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Lookup NU author(s): Professor Stefano Utili
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© The Authors, published by EDP Sciences 2020.The use of electrical conductivity measurements from a non-invasive hand held electromagnetic probe is showcased to monitor the water content of earthen embankments at routine inspections. A methodology to convert the electrical conductivity measurements from the electromagnetic device into water content values is illustrated. The methodology is based on measuring the soil electrical conductivity variation with respect to a baseline reference condition and calibrating a water content - electrical conductivity relationship by comparing electrical conductivity readings from the electromagnetic probes with water content readings taken from geotechnical probes installed in a few sections of the embankment. The values of water content converted from the conductivity measurements according to the proposed procedure were found to be in very good agreement with independent measures of water content taken at times well beyond the calibration period.
Author(s): Utili S
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 4th European Conference on Unsaturated Soils (E-UNSAT 2020)
Year of Conference: 2020
Online publication date: 16/10/2020
Acceptance date: 02/04/2018
Date deposited: 17/03/2021
Publisher: EDP Sciences
Series Title: E3S Web of Conferences