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Dr Pedro Ferreira
1M03
Department of Civil Environmental and Geomatic Engineering
Gower Street
London
WC1E 6BT
Tel: +44 (0) 7679 4366
Fax: +44 (0) 7380 0986
Appointment
  • Senior Lecturer
  • Dept of Civil, Environ &Geomatic Eng
  • Faculty of Engineering Science
Research Summary
Background

My past research have concentrated on the behaviour of residual soils and advanced element testing. The analysis of the results at the light of Critical State Soil Mechanics gave many insights regarding the difficult behaviour of residual soils related to fabric and various types of bonding agents, all contributing to the exquisite behaviour of residual soils. During this period I have also acquired valuable expertise in laboratory testing as I was also working for an engineering materials testing laboratory in Brazil. At that time I was responsible for the update of the laboratory equipment and procedures, with the aim to obtain ISO certification. This gave me an excellent platform to help me in what I do today as an experiments oriented researcher.


Recent Research

More recently I have dedicated myself to study reinforced soils and a research partnership with Prof Nilo Consoli have been established, whereby we share supervision of PhD students and results. A research project was established to understand the behaviour of overconsolidated soils reinforced with fibres. This has been conducted with triaxial laboratory tests on samples of clay from the Lambeth group, reinforced with tape type fibres, compacted in a way to mimic the compaction seen in situ. This have allowed us to better understand the mechanical behaviour of composite soils and improve the mixtures used to adequate the properties of poor soils to the requirements of the infrastructure and generate less maintenance costs. On a similar theme but aiming at well graded granular materials, I have been undertaking research in cemented granular materials, used as base and sub-base materials. The addition of cementation can be highly beneficial to reduce maintenance costs.

Another area of research I have been exploring is monitoring and measuring strains in soil structure interaction problems with the view to develop a better understanding of the stresses applied by the soil in retaining structures. This is essential in today’s world as these projects must be sustainable in order to guarantee the future of our society. The same line of research can be applied to the maintenance of infrastructures. This is being currently explored in a research project with LUL, looking at the use of modern instrumentation techniques to better understand the insidious decay of assets, helping to better predict maintenance schedules and costs.


Future Research

My future research is concentrated in 3 main areas:

1. Laboratory testing. I believe that understanding the basic behaviour of soils is a valuable contribution to improve design methodologies and work towards a more sustainable use of underground materials.

2. Instrumentation. Understanding the structural behaviour during construction must be linked to operational and disposal behaviour and this is an area of research that must be explored in order to achieve a more resilient and sustainable design.

3. Asset Management related to underground structures. This is a topic that affects the economy and society and must be addressed in depth in order to reduce the impact of infrastructure collapse in the social and economic development.


Teaching Summary

Year 1:
- Autocad 2D

- Support during the Lampeter Surveying Field trip

Year 2:
- Soil Mechanics 2: Slope Stability, Bearing Capacity, Foundations and slope stability

- Support for Scenarios 7 and 8

Year 3, 4 and MSc in Civil Engineering and Earthquake Engineering:
-Constructionarium

-Advanced Soil Mechanics: Clay properties, structure, sand properties, Critical State Soil Mechanics and constitutive models and basic concepts of numerical analysis.

-Geotechnical Earthquake engineering: Sand behaviour, liquefaction and liquefaction assessment methodologies.

-Roads and Underground Infrastructure: Tunnels, design, construction, monitoring and maintenance.



Academic Background
2002 DSC Doctor of Science – Geotechnical Engineering Universidade Federal do Rio Grande do Sul
1998 MSc Master of Science – Geotechnical Engineering Universidade Federal do Rio Grande do Sul
1995 BSc Bachelor of Science – Civil Engineering Universidade Federal do Rio Grande do Sul
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