- PhD Student: Anna Faroqy
- Supervisors: Prof David Chapman, Dr Alexander Royal, Dr Giulio Curioni
- Duration: 2014-2017
Electrical Resistivity (ER) and Time Domain Reflectometry (TDR) are geophysical tools that can be used for spatial and temporal ground data collection. Both techniques have been independently tested in geotechnical applications and recognised mainly for their clear response to ground water changes. Given that water is a major factor affecting the geotechnical properties of soils, there has been ongoing research into translating geoelectrical responses into geotechnical proprieties. Interpreting geophysical data, however, is often very problematic due to the variable nature and conditions of the soil. Nonetheless, calibrating ER and TDR to a specific soil has been found to provide more informative results, making these techniques a promising monitoring method that could advance the understanding of the behaviour of soils in-situ.
Although complementing ER, which provides good spatial coverage, with point measurements from TDR can enhance ground data interpretation, research on simultaneous application of both methods is very limited. Therefore, the aim of this research is to combine ER and TDR tests to enhance the translation of soil electromagnetic responses into geotechnical property changes. This will be achieved through controlled laboratory experiments on selected fine-grained soils during 1D consolidation, incorporating both ER and TDR measurements.