Evaluation of Eurocode 7

Evaluation of Eurocode 7 - Evaluation of Eurocode 7...

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Evaluation of Eurocode 7: Geotechnical design Evaluation de l’Eurocode 7: Calcul géotechnique T.L.L. Orr Trinity College Dublin, Ireland U. Bergdahl Swedish Geotechnical Institute, Linköping, Sweden R. Frank École Nationale des Ponts et Chaussées, Paris G. Scarpelli Technical University of the Marche Region, Ancona, Italy B. Simpson Arup Geotechnics, London, UK ABSTRACT This paper presents the outcome of an International Workshop on Evaluation of Eurocode 7 that was held in Trinity College, Dublin in March/April 2005. The background to the Workshop was the publication in No- vember 2004 of Eurocode 7: Geotechnical design – Part 1: General rules. Prior to the Workshop, ten geotech- nical design examples were distributed to European engineers to prepare solutions to Eurocode 7. A large number of solutions with a range of values were received. The authors reviewed these solutions to evaluate Eurocode 7 and identify the reasons for the scatter in the results which included: different assumptions and calculation models, different interpretations of Eurocode 7, different Design Approaches, and calculation er- rors. Other aspects of Eurocode 7 and limit state design, such as the use of finite element analyses and ser- viceability limit state design, were also considered during the Workshop. RÉSUMÉ Cet article présente les résultats d’un Atelier International pour l’Evaluation de l’Eurocode 7 tenu à Trinity College, Dublin en mars-avril 2005. La base de cet Atelier fut la publication, en novembre 2004, de l’Eurocode 7: Calcul géotechnique – Partie 1 : Règles générales. Avant la tenue de l’Atelier, 10 exemples de calcul avaient été distribués aux ingénieurs européens, afin qu’ils préparent des solutions conformes à l’Eurocode 7. De nombreuses réponses furent reçues. Les auteurs examinèrent les réponses pour identifier les raisons de la dispersion des résultats. Ces raisons sont des hypothèses et des modèles de calcul différents, dif- férentes interprétations de l’Eurocode 7, différentes Approches de Calcul et des erreurs de calcul. D’autres as- pects de l’Eurocode 7 et du calcul aux états limites, tels les calculs aux éléments finis et les états limites de service furent également abordés durant cet Atelier. Keywords: Eurocode 7, design examples, foundations, piles, retaining walls, uplift, heave, embankment 1 INTRODUCTION This paper presents the outcome of an International Workshop to evaluate Eurocode 7 that was held in Trinity College, Dublin in March/April 2005 (Orr, 2005a). The Workshop was organised by European Regional Technical Committee 10 – Evaluation of the Application of Eurocode 7 of the International Society for Soil Mechanics and Geotechnical Engi- neering in association with Work Package 2 of Geo- TechNet, the European Geotechnical Network for Research and Development, and Technical Commit- tee 23 – Limit State Design of the ISSMGE.
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