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Lee Tunnel

02 January 2017
Lee Tunnel is the first (Steel Fibre Reinforce Concrete) Tunnel Project to win the Concrete Society Award.
 
The LEE TUNNEL IN BECKTON, LONDON, a MVB JV (Morgan Sindall/Vinci Grand Projets and Bachy Soletanche) joint-venture project is the first tunnel ever to be nominated and has won this prestigious award in 48 years of the awards, the Concrete Society is celebrating its 50th anniversary this year.
 
The project comprises five shafts, with the diaphragm walls the deepest recently undertaken in the UK at 90m. A 7mdiameter 7 km-long tunnel connects the shafts. The innovative Dramix® 5D steel fibre reinforced concrete (SFRC) for the slip formed tunnel lining took 18 months to develop, resulting in the use of a steel fibre reinforced self-compacting concrete.
 
The 5 shafts were also designed and constructed using an innovative slip formed type of shaft construction, which also incorporated steel fibre reinforced concrete that reduced substantially the quantity of structural reinforcement, thus enabling a faster and safer construction process....