More dynamic geohazard mapping using satellite data and AI
Dr Andrew Lees and Dr Skevi Perdikou
Satellite technology allows us to measure surface soil moisture across vast areas regularly and cost-effectively. This provides significantly greater insight into the susceptibility of infrastructure to geohazards such as landslides and expansive clays.
However, the relationship between soil moisture content and soil engineering properties is a complex one involving unsaturated soil mechanics. FEA provides a useful tool to simulate the effect of changing moisture content on soil behaviour, particularly in the field of slope stability.
This webinar will provide an overview of soil moisture content measurement by satellite and present examples of assessing soil strength, slope stability and heave/subsidence due to changing moisture content.
About the presenters
Dr Andrew Lees Founder of Geofem, Geotechnical Engineer
Dr Andrew Lees FICE CEng: Andrew earned a Civil Engineering degree from the University of Southampton, followed by a PhD in centrifuge modelling and FEA of soil-structure interaction. After working as a geotechnical engineer at Mouchel International, he moved into academia, spending over a decade as a lecturer at Frederick University, Cyprus. In 2007, he founded Geofem. He is an active member of the NAFEMS Geotechnical Working Group, where he authored their first guidebook on obtaining parameters for numerical analysis, He also authored a widely recognised textbook on geotechnical FEA, published by the ICE in 2016. Additionally, he participated in the redrafting of Eurocode 7.
Dr Skevi Perdikou CEO Geofem, Geotechnical Engineer
Dr Skevi Perdikou: Skevi has 20 years of experience of applying satellite remote sensing techniques to civil engineering. Her combination of remote sensing and civil engineering expertise enables her to adapt state-of-the-art satellite technology to the needs of the infrastructure, mining and energy sectors. She obtained BEng Civil Engineering and MSc Geotechnical Engineering degrees from the University of London (City) and a PhD in Satellite Remote Sensing from the University of Southampton. She has coordinated several innovation projects on satellite remote sensing for the European Space Agency and has successfully completed commercial projects across the globe.
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