Lee Tunnel, London – United Kingdom
In a nutshell, the Lee Tunnel consists of 5 large diameter shafts with a combined capacity of 350,000 cu. metres, connected by a 7 km long tunnel.
01/03
Context
Context
To the east of London, on the banks of the Thames, the Morgan Sindall, VINCI Construction Grands Projets and Bachy Soletanche Joint Venture has built the Lee Tunnel, a major project in terms of both its size and its environmental purpose. The project, initiated by Thames Water Utilities Limited, enable the sewer system to better handle excess runoff during periods of heavy precipitation and ensure more efficient wastewater treatment.
Owner
Thames Water Utilities Limited
Engineer
CH2MHILL
General contractor
Morgan Sindall, VINCI Construction Grands Projets et Bachy Soletanche (MVB)
Completed in 2013, the 5 shafts – the largest ever built in the United Kingdom – were built using diaphragm walls.
The largest of the shafts has a 1.80 metre thick wall and is 41 metres in diameter and 98 metres deep. A fibre-reinforced concrete is applied to form a lining over the diaphragm wall. A slurry pressure tunnel boring machine was connected the shafts to each other. The Joint Venture was in charge of designing and installing the MEICA equipment and pumps required to manage the sewage.
Soletanche Bachy
Soletanche Bachy is a world leader in foundations and soil technologies, operating in 60 countries via a network of 80 subsidiaries and branches. The Group delivers the full range of geotechnical processes and provides innovative, effective solutions as either a lead or specialist contractor for turnkey projects with a geotechnical focus or specialist works.
a subsidiary of
Soletanche Freyssinet
Soletanche Freyssinet