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Vinci
  Content Type Features
  Date 2012
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Stress and positive reinforcement
22 November, 2012
Jean Launay of Vinci Construction explores the function of rock arch reinforcement and stresses on bolts and SCL. Launay offered this paper to Tunnels to illustrate the behavior of a properly designed NATM tunnel in the hope that it would convince colleagues, particularly in the UK, of the most efficient way to sustain soil and rock loads

Going underground
26 October, 2012
Spanish cities are tracking a world trend in moving below ground. This paper, submitted by the TAC, explores the use of underground space in Spain and it’s efforts to emulate the success seen in Montreal and Toronto. Technical writers Alfonso Perez and Amaia Arteta report

Crossrail planning dock breakout
16 July, 2012
When Crossrail took over the ancient Connaught Tunnel as part of its route through east London, it was envisaged that it would be brought up to standard with a fill and re-excavate procedure, but further site investigations led to concerns that will now be tackled by open excavation through the Royal Docks