Manuscript.pdf (1.31 MB)
0/0

Sustainability based-approach to determine the concrete type and reinforcement configuration of TBM tunnels linings. Case study: Extension line to Barcelona Airport T1

Download (1.31 MB)
journal contribution
posted on 26.03.2018 by Albert De la Fuente, Ana Blanco-Alvarez, J. Armengou, Antonio Aguado
© 2016 Elsevier Ltd Fibre-reinforced concrete (FRC) is a suitable alternative to the traditional reinforced concrete used in the manufacture of precast segments used to line tunnels excavated with a tunnel boring machine (TBM). Moreover, its use as a structural material has been approved by several national codes and by the current fib Model Code (2010). The use of FRC in segmental linings confers several technical and economic advantages, evidenced by the fact that structural fibres have been used to partially or entirely replace reinforcing bars in many TBM tunnels built over the past 20 years or currently under construction. FRC could also have been used in other tunnels, which are currently in the planning stage or under construction. However, despite its technical suitability and approval in current codes, the use of FRC was not possible in some cases. The impediment has sometimes been an incomplete understanding of the structural behaviour of the material, but a more general motive has been that comparisons of materials have taken into account only direct material costs and have not considered indirect costs or social and environmental factors. The aim of the present research is to develop a method for analysing the sustainability of different concrete and reinforcement configurations for segmental linings of TBM tunnels using the MIVES method (a multi-criteria decision making approach for assessing sustainability). This MCDM method allows minimising subjectivit y in decision making while integrating economic, environmental and social factors. The model has been used to assess the sustainability of different alternatives proposed for manufacturing the segmental tunnel lining for the extension of the rail line of Ferrocarrils de la Generalitat de Catalunya (FGC) to Terminal 1 of El Prat Airport in Barcelona.

Funding

The authors wish to express their gratitude to the Spanish Ministry of Science and Innovation (MICINN) for the financial support received in the framework of the FIBHAC project (reference: IPT-2011-1613-420000). They would also like to thank the Fundacio Bosch Potensa for the economic support provided.

History

School

  • Architecture, Building and Civil Engineering

Published in

Tunnelling and Underground Space Technology

Volume

61

Pages

179 - 188

Citation

DE LA FUENTE, A. ...et al., 2017. Sustainability based-approach to determine the concrete type and reinforcement configuration of TBM tunnels linings. Case study: Extension line to Barcelona Airport T1. Tunnelling and Underground Space Technology, 61, pp. 179-188.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2017

Notes

This paper was accepted for publication in the journal Tunnelling and Underground Space Technology and the definitive published version is available at https://doi.org/10.1016/j.tust.2016.10.008

ISSN

0886-7798

Language

en

Exports

Logo branding

Exports