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Page 17 Contractors World - UK & Ireland Vol 2 No 2

trainee engineer. Everything you want in life is hard. When you want something you just have to pursue it otherwise there is no point in having dreams.” The factory wi l l produce more than 200 segments per day at i ts peak and include a laboratory to test the quality of the concrete to ensure that the segments have a 120 year life. The factory has been built specifcally for the producton of Crossrail’s tunnel segments with the site to become home to a major Crossrail train depot once segment producton is completed.

Giant tunnel boring machine close to readiness

me Minister David Cameron visited Crossrail’s Westbourne Park site in t London to view the tunnel boring machines (TBMs) ahead of Crossrail nelling commencing next month.

The Prime Minister was joined by Spanish Prime Minister Mariano Rajoy to eet engineers and constructon workers and to hear more about tunnelling eparatons for Europe’s largest civil engineering project.

Construction of Crossrail’s western tunnels between Royal Oak and arringdon is being undertaken by a UK joint venture comprising BAM Nutal, ier Construction and Ferrovial Agroman - the UK subsidiary of Spanish multinational Ferrovial. Over 150 people are currently employed at the Westbourne Park site.

Andrew Wolstenholme, Crossrail’s Chief Executive said: “Crossrail is an infrastructure project of national significance. Tunnelling for the major new rail tunnels under London will get underway in just one month from now. Over 3,000 people are now employed on Crossrail with thousands more to be employed at the height of construction. Contracts worth £3bn have been awarded to-date providing a much-needed boost to the UK economy. At least 90 per cent of all Crossrail expenditure will be invested within the UK. Further high-value contracts will be awarded later this year including the main constructon contracts for Liverpool Street and Totenham Court Road statons.”

The first Crossrail TBM is due to undergo testing ahead of the start of tunnelling. Work is well underway to re-assemble the second TBM that will launch from Royal Oak Portal in April.

Next month, the frst TBM will be launched into one of the twin bores at Royal Oak Portal tunnelling east towards Farringdon. A second TBM will subsequently be launched in April through the second bore. At over 140 metres long and weighing around 1,000 tonnes the TBMs will travel 6.4km (4 miles) eastbound under London via Paddington, Bond Street and Totenham Court Road before reaching Farringdon in 2013.

New approach to refurbishing the Connaught Tunnel

Crossrail has adopted a new approach to restoring and enlarging the Connaught Tunnel which is safer and more efcient.

Connaught Tunnel in the Royal Docks was built in 1878 and was part of the North London Line untl 2006. The tunnel will be extensively refurbished as part of works to construct Crossrail’s new Abbey Wood branch.

Sections of the existing tunnel are in a poor structural condition. In 1935, larger ships began

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