Abstract
AbstractThe Grand Paris Express is an urban infrastructure project in the Paris agglomeration. The outer districts, which will be enlarged with 70,000 new flats per year, are to be connected to the public transport network of the core city. At the same time, various economic centres are planned around the city, similar to the La Défense banking centre. The metro lines connect the suburban railways, three airports and various TGV stations as a large ring and with direct connections to other transport hubs. The 19.3 km Grand Paris Express Line 16.1 connects the suburbs north and east of Paris in the Seine‐Saint‐Denis department. The cramped construction sites require modern construction processes that are sustainable and can be implemented quickly. For the fully automatic and completely underground line the client, Société du Grand Paris (SGP), is using segmental linings made of steel fibre concrete. The designer Egis, the contractor Eiffage Génie Civil and the segment manufacturer Bonna Sabla optimised the original solution of the 9.5 m ring in terms of productivity and quality in order to complete the construction site within SGP's desired schedule. For the MC2010 performance class, the segments use C50/60 concrete reinforced with 40 kg/m3 of Dramix high performance steel fibres. The 0.75 mm thin fibres, with a tensile strength of more than 1800 N/mm2, form a massive network of 11.6 km fibres/m3 concrete. The entire project also saves over 10,000 t of CO2 due to less steel consumption.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.