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The University of Southampton
Engineering
Phone:
(023) 8059 8363
Email:
M.Pinho-Lopes@soton.ac.uk

Dr Margarida Fernandes de Pinho Lopes CivEng MSc PhD FHEA

Lecturer in Geomechanics

Dr Margarida Fernandes de Pinho Lopes's photo

Dr Margarida Fernandes de Pinho Lopes is Lecturer in Geomechanics within Engineering and Physical Sciences at the University of Southampton.

My technical areas of interest are geotechnical engineering and the application of geosynthetic materials. My particularly focus is on reinforcement and improvement of soil, durability and endurance of geosynthetics, soil-geosynthetic interaction and geosynthetics in railways and in fluvial/coastal environments. I also work on Education in Civil Engineering, particularly in geotechnical topics.

I have been a Lecturer in Geomechanics at Southampton since 2015, and I am currently the programme leader for Civil Engineering. Previously I was as an Assistant Professor at University of Aveiro, Portugal (2006 – 2013) and senior lecturer at University of Brighton (2013 – 2015).

I graduated in Civil Engineering (5 years degree) from the Faculdade de Engenharia da Universidade do Porto, Portugal. Later I received a M.Sc. in Structures in Civil Engineering and a PhD in Civil Engineering from the same university.

Research interests

My research on geotechnical infrastructure encompasses:

  • Application of geosynthetics in civil engineering
  • Soil reinforcement and ground improvement
  • Reinforced soil design
  • Soil-reinforcement interaction
  • Durability and endurance of geosynthetics
  • Constitutive models for reinforced soil
  • Geosynthetics in railways and in fluvial/coastal environments

My research on geoengineering education encompasses:

  • Active learning. Cooperative and collaborative learning
  • Problem- and project-based learning
  • Feedback practices
  • Outreach
     

The application of geosynthetics in civil engineering works, and particularly in geotechnical engineering, has been increasing thus the questions regarding their durability, as well as the definition of reduction factors to use in their design, are becoming more and more relevant. I have been studying the durability and endurance of geosynthetics, namely regarding installation damage, tensile creep and creep rupture, compressive creep and abrasion and investigating possible synergisms between them. For that, I have developed several laboratory apparatus prototypes and I have carried out several field trials.

Traditionally, good quality granular materials are used in reinforced soil applications. However, the pressure to achieve sustainable but resilient structures is high. Using marginal / lower quality soils and guaranteeing stability can be a challenge. Some of my current research topics include studying the reinforcement of marginal / lower quality soils using geosynthetics and centrifuge testing of reinforced soil.

The performance of reinforced soil is highly dependent on the soil-geosynthetic interaction mechanisms and properties, as it affects the effectiveness of the transference of tensile stresses from the soil to the reinforcements. In reinforced soil structures, when under low confining stresses, geosynthetics can suffer pull-out (relative movement of the reinforcement respectively to the surrounding soil). When geosynthetics are placed over an inclined surface and the relative movement is mainly caused by shearing, inclined plane shear tests are used. I have studied the soil-reinforcement interaction mechanisms using pull-out and inclined plane shear tests and how they are affected by the durability of geosynthetics.

Often geosynthetics are used in the construction or rehabilitation of railways within or beneath the ballast or subballast layers. They can act as separators of materials with different particle size distributions, filters, drainage elements and reinforcements. I have been studying the durability issues associated with the demanding conditions of a railway system. I have also done work using the Discrete Element Method (DEM) to the model the settlement behaviour, during cyclic loading, of a ballasted rail track.

Research Projects

Principal investigator:

Endurance durability of geosynthetics (GeoEndurance) - PTDC/ECM/099087/2008 - COMP-01-0124-FEDER-009724; 1 May 2010 – 30 October 2013; Funded by FCT, Fundação para a Ciência e a Tecnologia and COMPETE, Programa Operacional Temático Factores de Competitividade

Very Light Rail Shuttle Between Dudley’s Tourist Attractions. 75K. 20/7/2016 – 19/01/2017. Funded by Rail Safety Standards Board / RSSB1974/13/FR. Lead institution: University of Warwick

Research group

Infrastructure Group

Affiliate research groups

Geomechanics and Environmental Geotechnics, Margarida is a collaborator within FEUP - CONSTRUCT

Editorial board of scientific journals

  • ICE Geotechnical Engineering
  • International Journal of Geosynthetics and Ground Engineering

Scientific technical committees

  • International Geosynthetics Society (IGS): TC on Hydraulic Applications
  • International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE): TC306 Geo-Engineering Education
  • ISO/TC 221 Geosynthetics, working groups: WG3 – Mechanical properties; WG4 – Hydraulic properties, WG5 – Durability; WG6 – Design for geosynthetics
  • CEN/TC 189 Geosynthetics, working groups: WG4 – Hydraulic testing, WG5 – Durability

Memberships

Ordem dos Engenheiros (Portuguese Institution of Engineers). Senior member.

Higher Education Academy. Fellow.

International Geosynthetics Society.

UK Chapter of International Geosynthetics Society.

Portuguese Chapter of International Geosynthetics Society.

Portuguese Geotechnical Society.

Portuguese Society for Engineering Education.

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Articles

Books

Book Chapters

Conferences

Letter/Editorial

Director of Programmes for Civil Engineering

CENV2006 Soil Mechanics Module Coordinator and lecturer

CENV6112 Advanced Foundations Engineering Lecturer

FEEG3003 Individual Project Lecturer

FEEG6012 MSc Research Project Lecturer

Dr Margarida Fernandes de Pinho Lopes
Engineering, University of Southampton, Highfield, Southampton. SO17 1BJ United Kingdom

Room Number: 178/3005

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