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A Muddle or a Miracle?
25 September, 2013
The dawn of world metro construction broke less than a kilometre from Tunnels' London offices a century and a half ago. Historian James Chappelow starts from the beginning

28 August, 2013
In this second and concluding part of his Harding Prize winning paper 'TBM crossing at the Lee Tunnel connection shaft', David Clayton of Morgan Sindall explores GRP benets and box culvert requirements

Harding Prize 2013
19 July, 2013
This year’s BTS Harding Prize was awarded to David Clayton of Morgan Sindall for his paper on the TBM crossing at the Lee Tunnel conection shaft. This is part one of his paper.

Blast Protection Design
27 February, 2013
The security of tunnels against potential detonated explosions from within and outside the tunnel structure is a main challenge facing to owners and operators of tunnel systems, particularly those used for vehicle or rail traffic. This paper by Sunghoon Choi of Parsons Brinckerhoff USA introduces a design practice recently developed for protecting underground structures from explosion in USA