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Dr. Trevor Orr

Associate Professor (Civil Struct & Env. Eng.)

Trevor has been at Trinity College since 1977.
  Drilling Technology   Environmental Engineering, Pollution Control   Environmental Impacts, Interactions   Geographical and Geological Engineering   Geography of agriculture   GEOTECHNICAL ENGINEERING   Geotechnics   Mining Technologies   Soil Mechanics   Soil Sciences   Soil Sciences, Conservation   Soil Sciences, Erosion   Soil Sciences, Soil Genesis
 Investigation of vibrations due to tunnel boring

Details Date
Presented first Prestige Lecture of 2014 at the Institution of Civil Engineers, London which was based on my Crampton Prize Award winning paper: "How Eurocode 7 has affected geotechnical design: a review" published in the Journal Proc. ICE Geotechnical Engineering in December 2012 13th January 2014
Presented invited lecture "Eurocode 7 and pile design in Ireland and the UK" at the Baltic Piling Days conference, Tallinn, Estonia September 2012
Presented invited lecture "What learning outcomes can be achieved by incorporating case histories in geotechnical courses?" at the XV European Conference on Soil Mechanics and Geotechnical Engineering, Athens, Greece September 2011
Convenor of CEN TC250/SC7 Evolution Group 3: Model solutions 2011-present
Visiting Professor at Wroclaw University of Technology, Poland in 2010 on a co-funded project for the Enhancement and Development of the Teaching Capacity of Universities within the European Social Fund Framework
Presented invited lecture "Eurocode 7 - Teaching students" to the Meeting of Teachers of Geotechnical Subjects, Queens University, Belfast September 2010
Presented invited lecture "Eurocode 7 - The geotechnical design code of the future" to the New Zealand Institution of Civil Engineers, Christchurch, New Zealand August 2010
Presented invited lecture "Eurocode 7 - The geotechnical design code of the future" to the Malaysian Institution of Civil Engineers, Kulala Lumpur, Malaysia July 2010
Presented invited lecture "Eurocode 7, Characteristic Values and New Geotechnical Standards" at the ILF Seminar on Eurocode 7, Innsbruck, Austria December 2009
Presented invited lecture "Geotechnical education and Eurocode 7", 3rd International Conference on Geotechnical Education, Constantza, Romania 3 June 2008
Presented invited lecture "Eurocode 7 and geotechnical models" at Von der Forshung zur Praxis, Symposium anlassich des 80, Geburtstags von Prof. U. Smoltczyk, Stuttgart, Germany 14 November 2008
Presented invited lecture on "Ground vibrations and the Dublin Port Tunnel" to Swedish Geotechnical Society, Stockholm, Sweden 30 May 2007
Presented invited lecture "Harmonization of geotechnical with structural design codes in Europe" to the Asian Civil Engineering Coordinating Council Workshop on Harmonization of Design Codes in the Asian Region, Taipei, Taiwan, November 2006
Presented invited lecture "Development and implementation of Eurocode 7" at the International Symposium on New Generation Design Codes for Geotechnical Engineering Practice, Taipei, Taiwan November 2006
Invited Panelist at International Geotechnical Conference in Osaka, Japan 2005
Organised European Young Geotechnical Engineers Conference in TCD 2003
Presented British Geotechnical Society's touring lecture for 2002. 2002
Presented theme lecture at the International Workshop on Foundation Design Codes in Kamakura, Japan, March, 2002 2002
Member of Irish National Council for Academic Awards' accreditation panel for the new civil engineering degree course at the Cork Institute of Technology 2000
Chairman of the Committee for European Young Geotechnical Engineers Conference, held in Dublin in 2002. 2000
Reviewer of papers for the journal, Geotechnique 1999
External Examiner for the Civil Engineering Diploma and Certificate courses at Dundalk Institute of Technology 1999-2005
COST Action C7 - Soil-Structure Interaction: . Irish representative on EU COST Action Committee investigating occurrence of, and design for, soil-structure interaction in urban civil engineering. 1996 - 2001
Eurocode 7, Geotechnical Design: . 1981 to 1994 First a member and then, for the last seven years, secretary of the drafting panel for Eurocode 7, the new European Standard for geotechnical design. . 1997 to 1998 Irish Member and Secretary of Working Group 1 of CEN Technical Committee 250/SC7 for the conversion of the present pre-standard version of Eurocode 7 into a full European standard. . Since 1998 Member of the ISSMFE committee on Limit State Design in Geotechnics. . Chair of European Committee on Application of Eurocode 7
Project Management Society: . Currently chairman of the Project Management Society of the Institution of Engineers of Ireland.
Advisor for engineering consultants and contractors on the geotechnical aspects of various construction projects in Dublin and elsewhere in Ireland. Recent projects include: - investigation of the cause of the failure of a culvert under a road embankment - the design of the foundations for the new sewage treatment works in Dublin Port - the design of foundations for a building with a deep basement in Raheny - the determination of the cause of cracks in buildings in Swords, - the preparation of a report on the ground conditions in Dublin for the underground part of the LUAS project - advisor to An Bord Pleanala on the stability of the ground for the Corrib gas terminal, Co. Mayo.
Member of the ICE journals Awards Panel 2013-present
Member of the ICE journal Geotechnical Engineering Editorial Advisory Panel 2010-2012
Member of the ICE journal Geotechnique Editorial Advisory Panel 2007-2009
Language Skill Reading Skill Writing Skill Speaking
French Medium Medium Medium
German Medium Medium Medium
Details Date From Date To
The Project Management Society of the Institution of Engineers of Ireland: . Chair since 2001
The Institution of Civil Engineers, London
The British Geotechnical Association
The Institution of Engineers of Ireland
Geotechnical Society of Ireland: . Founder member and currently a committee member of the Geotechnical Society of Ireland
Trevor L.L. Orr, Editorial, Proceedings of the ICE - Geotechnical Engineering, 168, (1), 2015, p1 - 2, Journal Article, PUBLISHED  DOI
Managing risk and achieving reliable geotechnical designs using Eurocode 7 in, editor(s)Kok-Kwan Phoon and Jianye Ching , Risk and Reliability in Geotechnical Engineering, Boca Raton, Florida, USA, CRC Press, 2014, pp395 - 433, [Trevor L.L. Orr], Book Chapter, PUBLISHED
On the applicability of the Eurocode 7 partial factor method for rock mechanics in, editor(s)R. Alejano, Áurea Perucho, Claudio Olalla, Rafael Jiménez , Rock Engineering and Rock Mechanics: Structures in and on Rock Masses, Leiden, The Netherlands, CRC Press, 2014, pp1517 - 1523, [Bedi A. & Orr T.L.L.], Book Chapter, PUBLISHED  DOI
Reilly C. & Orr T.L.L., A novel triaxial testing procedure to model the action of lubricants in pipe jacking, Civil Engineering Research in Ireland, Queen's University Belfast, August 2014, edited by Nanukuttan S. & Goggins J. , Queen's University Belfast, 2014, pp403 - 408, Notes: [This paper was awarded the prize for the best paper presented at the conference.], Conference Paper, PUBLISHED
Trevor L.L. Orr, How geotechnical risk, uncertainty and decision making are addressed in Eurocode 7, ICVRAM-ISUMA Vulnerability, Uncertainty, and Risk: Quantification, Mitigation, and Management, Liverpool, July 2014, edited by Beer, M. and Patelli, E. , American Society of Civil Engineers, 2014, pp2419 - 2428, Conference Paper, PUBLISHED  DOI
Trevor L.L. Orr, Harmonization and status of geotechnical standards in Europe, DFI/EFFC 11th International Conference on Piling and Deep Foundations - Global Perspective on Sustainable Execution of Deep Foundation Works, Stockholm, May 2014, edited by K. Rainer Massarsch and Stefan Aronsson , Deep Foundations Institute, 2014, pp37 - 46, Conference Paper, PUBLISHED  TARA - Full Text
O'Kelly B.C. and Orr T.L.L., Briefing: Effective-stress strength of peat in triaxial compression, Proceedings of the Institution of Civil Engineers, Geotechnical Engineering, 167, (5), 2014, p417 - 420, Journal Article, PUBLISHED  DOI
Implementing Eurocode 7 to achieve reliable geotechnical designs in, editor(s)P. Arnold, G.A. Fenton, M.A. Hicks, T. Schweckendiek and B. Simpson , Modern Geotechnical Designs Codes of Practice, Amsterdam, IOS Press, 2013, pp72 - 86, [Trevor Orr], Notes: [This chapter examines how the different measures to achieve safe and reliable geotechnical designs are implemented in Eurocode 7. These measures include: the use of the concept of geotechnical categories of take account of the complexity of geotechnical designs, procedures for managing the design and execution processes, requirements for the selection of characteristic parameter values, and recommended partial factor values associated with the three Design Approaches. How the consequences and reliability classes, set out in the head Eurocode, EN 1990, are implemented in Eurocode 7 for geotechnical designs is also examined. In additions, the paper presents the results of surveys to investigate how Eurocode 7 is being adopted in the different European countries and the experiences in some of those countries with its implementation.], Book Chapter, PUBLISHED  TARA - Full Text
Orr T.L.L., What learning outcomes can be achieved by incorporating case histories in geotechnical courses?, Proceeding 15th European Conference on Soil Mechanics and Geotechnical Engineering, Athens, September 2011, edited by A. Anannostopoulos, A. Pachakis and M. Tsatsanifos , 4, IOS Press, 2013, pp595 - 602, Conference Paper, PUBLISHED  URL  URL
Orr T.L.L. and Pantazidou M, Case studies used in construction to achieve specific learning outcomes: The case of the embankments constructed for the approach to Limerick Tunnel, Ireland, 7th International Conference on Case Histories in Geotechnical Engineering, Chicago, USA, April/May 2013, edited by Shamsher Prakash , University of Missouri, 2013, pp12 , Notes: [This paper gives an example of a case study written for instructional purposes, in order to support the achievement of specific learning outcomes which include (i) identifying modes of failure and (ii) selecting appropriate soil parameter types and values. Case writing was based primarily on information from a detailed publicly available article, supplemented with additional input from one author of this article. The case narrative is accompanied by annotated calculations, which follow the general design philosophy of the project. The case focuses on two of the main issues for the geotechnical design of the highway embankments close to the Limerick Tunnel, which are founded on very soft organic fine grained material. First, secondary compression, which is sizeable for this highway project, required surcharging to reduce the rate of long-term settlement. Second, the low undrained shear strength and high compressibility of the foundation material required construction of the embankments in stages, to achieve a degree of consolidation necessary for increased vertical effective stress, increased shear strength and reduced compressibility. This paper includes the case narrative, excerpts from the accompanying calculations, and comments on the instructional decisions involved in the preparation of both.], Conference Paper, PUBLISHED  TARA - Full Text

Page 1 of 7
Geotechnical research Trinity College Dublin, The Irish Scientist Year Book 2005, 13, 2005, pp90 - [Farrell E.R, Orr T.L.L and O'Kelly B.C], Item in dictionary or encyclopaedia, etc, PUBLISHED


Award Date
Crampton Prize: awarded for the best paper published in the journal Proceedings of the Institution of Civil Engineers: Geotechnical Engineering in 2012 2013
Institution Prize of the Institution of Enginers of Ireland. 1988
[F.I.E.I.] Fellow of the Institution of Engineers of Ireland 1988
Scholarship in TCD 1970
Harding Prize of the British Tunnelling Society 1975
Geotechnical design . Risk and reliability in geotechnics . Applications of probabilistic and statistical methods in geotechnics . Limit state design and geotechnical codes . Development of European geotechnical standards including Eurocode 7 . Tunnelling and microtunnelling . Properties and behaviour of Irish soils . Properties and stability of peat . Problems due to pyritic fill . Geotechnical engineering education