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Diaphragm walling completed at Tideway’s Chambers Wharf site

chambers wharf 41

Work on the Tideway project at Chambers Wharf in Bermondsey has reached a key milestone with Bachy Soletanche’s completion of diaphragm walling for the tunnel boring machine launch shaft at the site.

“After several months of hard work the completion of the diaphragm wall works at Chambers Wharf marks a significant milestone for the project,” said Tideway delivery manager Jim Avent.

“It was no mean feat, around 35,000t of material excavated during the works, all of which was removed from site by barge in line with Tideway’s commitment to remove as much material as possible by river. Similarly, all reinforcement cages for the walls have been delivered to site by barge.”

Chambers Wharf is part of the East section of the project which is being constructed by a joint venture between Costain, Vinci Construction Grands Projets and Bachy Soletanche

The 72m deep diaphragm wall shaft was constructed by Bachy using the world’s first electrically powered hydrofraise.

Bachy had hoped to complete the diaphragm wall construction by mid-February.

Excavation of the shaft is not planned to take place until later this year. Construction of an acoustic shed over the shaft to minimise noise and dust needs to be undertaken first and tunnelling is expected to start on site in mid-2019.


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