Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

World first innovation developed for Tideway

Tideway Hydrofraise Chambers Wharf 3to2

A new innovation developed for the Tideway project has led to a quieter, electric excavation machine.

The mains electrically-powered ‘hydrofraise’ diaphragm walling machine is being used to dig the shaft for the main tunnel at the super sewer’s Chambers Wharf site in Bermondsey.

Tideway geotechnical construction manager Martin Stanley said: “As well as being more environmentally friendly, it also means the machine will be quieter when it’s in use.

“This type of hydrofraise machine is thought to be one of the first of its kind in the world, so we are really proud we’ve been able to launch it and will continue to look at ways of reducing our carbon footprint and minimising any disruption to our neighbours.”

The hydrofraise started digging at the end of August and has been developed by the team building the east section of the Thames Tideway Tunnel – a joint venture of Costain, Vinci Construction Grands Projets and Bachy Soletanche.

The new machine will be used to dig shafts at Chambers Wharf, Deptford Church Street and King Edward Memorial Park in Tower Hamlets. After which it will return to the Soletanche Bachy Group for projects around the world.

The Thames Tideway Tunnel is a 25km tunnel, running from west to east London, that will help tackle sewage pollution in the River Thames.

Readers' comments (1)

  • For those who are unaware of the well-established hydrofraise technology a very good overview of how it works, and of its use in other projects, is given here:https://www.youtube.com/watch?v=-iS-7a-mn7w.
    This article does not clearly report on exactly how the 'new innovation' of a 'mains electrically-powered' system works, compared to the existing conventional powering systems used elsewhere.
    I hope this gives a bit more of a technical understanding and depth to this article.

    Unsuitable or offensive? Report this comment

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.