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Monitoring of earthen long linear embankments by geophysical tools integrated with geotechnical probes

Lookup NU author(s): Professor Stefano Utili

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

© 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.


Publication metadata

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

Pages: 01031

Online publication date: 16/10/2020

Acceptance date: 02/04/2018

Date deposited: 17/03/2021

ISSN: 2267-1242

Publisher: EDP Sciences

URL: https://doi.org/10.1051/e3sconf/202019501031

DOI: 10.1051/e3sconf/202019501031

Series Title: E3S Web of Conferences


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