Contractors World


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Contractors World UK & Ireland
2012 Vol 2 No 3   
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Progress on CrossRail - Page 3 of 5 >>>

Later this year, the second pair of machines will launch from Limmo in Docklands driving 8.3 km (5.2 miles) west towards Farringdon via Whitechapel and Liverpool Street. In the winter, two tunnel boring machines will be launched from Plumstead travelling 2.6 km (1.6 miles) and under the River Thames to North Woolwich.

The second tunnel boring machine will be named Ada after Ada Lovelace who was one of the earliest computer scientists. She worked with Charles Babbage on his “analytical engine”, and is regarded as having written the first computer program.

The other winners were Victoria and Elizabeth and Sophia and Mary - these names will be used to name the next four tunnel boring machines.

Early stages of piling at Limmo Peninsular for the large caisson which will provide protal access for two of the large TBMs.    The first tunnel boring machine will now be placed on a self-propelled mobile trailer and moved to Royal Oak Portal, around 400 metres from its current location at Westbourne Park.

The Hampden Street footbridge will be temporarily closed on two occasions and carefully jacked-up to allow the tunnel boring machine to progress underneath. Once the tunnel boring machines reaches Royal Oak Portal, final testing will then take place ahead of tunnelling commencing.

Early stages of piling at Limmo Peninsular for the large caisson which will provide protal access for two of the large TBMs.

Once the first machine has progressed sufficiently, the second tunnel boring machine will then be launched from Royal Oak. When the second tunnel boring machine has reached Paddington, both machines will then progress forward through the Paddington station box to Bond Street and then onwards to Farringdon.

Later this year, the second pair of machines will launch from Limmo in Docklands driving 8.3 km (5.2 miles) west towards Farringdon via Whitechapel and Liverpool Street. In the winter, two tunnel boring machines will be launched from Plumstead travelling 2.6 km (1.6 miles) and under the River Thames to North Woolwich.

Joint Venture partners BAM Nuttall, Ferrovial Agroman and Kier Construction (BFK) were awarded the £500 million western tunnels contract to construct the tunnels between Royal Oak and Farringdon in December 2010.

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Page updated: March / April 2012

 

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