{"id":96970,"date":"2021-07-28T14:18:13","date_gmt":"2021-07-28T13:18:13","guid":{"rendered":"https:\/\/www.pbctoday.co.uk\/news\/?p=96970"},"modified":"2021-07-28T14:18:13","modified_gmt":"2021-07-28T13:18:13","slug":"thames-tideway-tunnel","status":"publish","type":"post","link":"https:\/\/www.pbctoday.co.uk\/news\/planning-construction-news\/thames-tideway-tunnel\/96970\/","title":{"rendered":"Breakthrough at Thames Tideway links all three tunnel sections"},"content":{"rendered":"

Thames Tideway<\/a> has reached a significant milestone at the Carnwath Road Riverside site in Fulham with the breakthrough of the West main tunnel connection into the Central section<\/h2>\n

The breakthrough of the 75m connection tunnel, which has been constructed to join these two sections, brings all three sections of the new Thames Tideway tunnel together as one.<\/p>\n

When a change was needed to the arrival into the Carnwath Road shaft<\/a> by Tunnel Boring Machine (TBM)\u00a0Millicent, the teams came together to deliver a solution.<\/p>\n

The breakthrough!<\/h3>\n

Working alongside the West section Joint Venture of Balfour Beatty, Morgan Sindall, and BAM Nuttall, Tideway decided that the best course would be to \u2018turn and bury\u2019 the TBM and for a connection tunnel to be constructed from the Carnwath Road shaft to the main tunnel.<\/p>\n

The final connection between the sprayed concrete-lined tunnel and the segmental tunnel involved the West section team carefully breaking out the precast tunnel segments and forming an enlargement around the segmental interface ring.<\/p>\n

Prior to the works starting the team carried out a full-scale trial of the connection to ensure that they could achieve the quality required.<\/p>\n

Works on the connection tunnel started in January this year and the breakthrough was completed in mid-July.<\/p>\n

Twenty kilometres of the 25-km ‘super sewer’ have been constructed with secondary lining underway.<\/p>\n

Tunnel Boring Machine Selina<\/a> is tunnelling the final section from Chambers Wharf in Bermondsey to Abbey Mills Pumping Station.<\/p>\n

A total of six TBMs are being used to create\u00a0Thames Tideway\u00a0(with two already finished tunnelling<\/a>), meaning Selina is the final machine to begin work \u2013 however, she is also the deepest.<\/p>\n

Selina is named after Dr Selina Fox, who founded the Bermondsey Medical Mission in 1904. The small clinic and eight-bed hospital provided medical and spiritual care to the most vulnerable women and children in the area and continues to this day as a local charity.<\/p>\n

\n<\/div>","protected":false},"excerpt":{"rendered":"

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