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Rock engineering design and the evolution of Eurocode 7: The critical six years to 2020
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2017 (English)In: 13th ISRM International Congress of Rock Mechanics, International Society for Rock Mechanics , 2017Conference paper, Published paper (Refereed)
Abstract [en]

In 2010, the Eurocode for Geotechnical Design, EN-1997-1:2004 (CEN, 2004), informally known as Eurocode 7 or EC7, became the Reference Design Code (RDC) for geotechnical design - including rock engineering design - within the European Union (EU). EC7 is one standard within the comprehensive Structural Eurocode suite, which as a whole has been also adopted by a number of other countries beyond the EU. EC7 is thus becoming a key design standard for geotechnical engineering worldwide. As part of the Structural Eurocode suite, EC7 requires designs to adhere to the principles of Limit State Design. However, it is not clear that current rock engineering design practice can satisfy this requirement. In addition, evidence is accumulating that EC7 is currently difficult to apply to, and may even be inappropriate for, rock engineering design. These issues may be due to the fact that the development of EC7 to date took place without any formal input from the international rock mechanics and rock engineering community. In early 2011 under the auspices of CEN (Comité Européen de Normalisation / European Committee for Standardisation), EC7 entered a formal period of maintenance which was aimed at improving the applicability and ease-of-use of the Code. This maintenance cycle will conclude in 2020 with the publication of a revised version of EC7. This paper describes a number of critical aspects for rock engineering in the context of EC7, in particular the following: - the history of the Structural Eurocodes and the concepts they embody; - the nature of Limit State Design and the challenges and opportunities it poses for rock engineering design; - the formal means by which the Structural Eurocode maintenance cycle proceeds; - the plans currently being developed for improving EC7 with regard to rock engineering design and construction; - the unique and vital opportunity for the entire international rock mechanics and rock engineering community to comment on the Code and make suggestions for its improvement.

Place, publisher, year, edition, pages
International Society for Rock Mechanics , 2017.
Keywords [en]
Design standards, Eurocode, Limit state design, Codes (symbols), Geotechnical engineering, Maintenance, Mechanics, Rock mechanics, Design standard, Eurocodes, Geotechnical designs, Limit state designs, Maintenance cycles, Reference designs, Rock engineering, Structural Eurocodes, Rocks
National Category
Design Architectural Engineering
Identifiers
URN: urn:nbn:se:kth:diva-227834ISI: 000337166500121Scopus ID: 2-s2.0-85044114588ISBN: 9781926872254 OAI: oai:DiVA.org:kth-227834DiVA, id: diva2:1206509
Conference
13th ISRM International Congress of Rock Mechanics 2015, 10 May 2015 through 13 May 2015
Note

QC 20180517

Available from: 2018-05-17 Created: 2018-05-17 Last updated: 2018-05-17Bibliographically approved

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Stille, Håkan

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