Antonis Zervos’s technical area of expertise is the constitutive and numerical modelling of geomaterials; his work is focussed on understanding, describing mathematically and approximating numerically the mechanical behaviour of soils and rocks. He is an experienced numerical modeller with significant expertise in programming and using finite element and finite difference codes, as well as using boundary element and distinct element software
He has an active interest in the following applications:
- The mechanics of railway ballast and ballasted track. The majority of the railway network in the UK and worldwide is on ballasted track. Better scientific understanding of its mechanics and the interaction of its components will allow the design of more robust railway track that needs maintenance less often.
- The mechanics of catastrophic landslides. Large scale catastrophic landslides on land or under sea can be a major threat to human life and infrastructure. Better understanding the conditions under which they may develop and the factors that govern their catastrophic potential will enable the design of appropriate mitigation measures and robust defences.
- The mechanics of oceanic sediments bearing gas-hydrates. Gas hydrates are ice-like compounds of water and natural gas and can be found under particular high-pressure, low-temperature ocean environments. They are important as a future energy source but also as a hazard to offshore operations. Better understanding their mechanics will lead to more robust techniques for their detection and more reliable predictions of the danger they potentially pose to offshore infrastructure.
- Modelling the effects of material microstructure. Although their effect is largely ignored in the theoretical framework that underpins every-day practice, the microstructural details (e.g. grain size) of a soil or rock may come to dominate its mechanical response. Our research develops theoretical and numerical tools for including such information when predicting material behaviour.
Finally, geomaterial modelling is an integral part of tackling problems relevant to the production of oil and natural gas. Mostly during his time at Schlumberger Cambridge Research, Antonis Zervos carried out research and consultancy on petroleum geomechanics, and particularly on hydraulic fracturing, on the stability of inclined wellbores and perforations, on wellbore-screen interaction, and on stress determination around large geological structures.
Large-scale landslides can seriously threaten human life and infrastructure over extensive areas, by rapidly moving substantial volumes of material and even by causing catastrophic tsunamis. Better understanding their mechanics is key for predicting such events and protecting ourselves from their consequences.
Although their effect is largely ignored in the theoretical framework that underpins every-day practice, the microstructural details (e.g. grain size) of a soil or rock may come to dominate its mechanical response. Our research develops theoretical and numerical tools for including such information when predicting material behaviour.
Dr Antonis Zervos
Engineering and the Environment University of Southampton Highfield Southampton SO17 1BJ
Room Number: 7/5039
Telephone: (023) 8059 2459
Facsimile: (023) 8067 7519