Contractors World

Contractors World
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Contractors World UK & Ireland
2011 Volume 1 Issue 7
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BREAKING NEWS
 • GT Access Takes UKs First 15 m Hinowa Booms


 • Snorkel UK Appoints PLP Lift Trucks As Regional Dealer
 • A-Plant to Merge Lion Trackhire and Eve under New Name
 • Lendlease have renewed their framework agreement with Human Recognition Systems.
 • RPS Appointed for GWR Exeter Depot Expansion
 • CASE appoints new heavy-line specialist

 

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Crossrail contributes to Europe’s largest conservation scheme - Page 3 of 3

 

 

 

Need for both specialised and conventional equipment

Need for both specialised and conventional equipment

Railtrack working is, in many respects, more demanding for contractors because access is always a problem. Main access is generally along existing railtrack with its many bridges, overhead gantries, electrification installations and more. Very often, specialised equipment is necessary, such as the track mounted telescopic crane from Balfour Beatty, and Hydrema road/rail travel excavators.

There are added difficulties if adjacent tracks are ‘live’ and in use by freight and passenger trains.

In and around London and other cities, it is a priority to keep commuter trains operating as far as possible.

So essential are these lines that railtrack working often has to be done at night when the line can be closed and the high-voltage power turned off. This requires powerful portable floodlight systems which, together with other equipment, needs to be as quiet as possible.

Hire companies such as HE Services are frequently called upon to provide necessary equipment to meet specific challenges in the works. The ability to hire in conventional equipment allows the contractors involved to invest more into the specialised equipment used.

Very often, specialised equipment is necessary, such as the track mounted telescopic crane from Balfour Beatty, and Hydrema road/rail travel excavators.

Pot of Gold awaits the contractors working on the Crossrail project as work finishes for the day at Wallasea.

All photographs courtesy of Lafarge
Photographer: Blackmedia

Line reinstated

Reinstatement of the freight rail link into the Northfleet site from the North Kent Line is now underway and will be commissioned in January 2012. The length of the rail link is around 2.25 km and in total 4.75 km of new track will be provided.

Andy Mitchell, Crossrail Programme Director said: “Crossrail is committed to delivering the new railway in the most sustainable way possible. At least two-thirds of all Crossrail excavated material will be used to create a huge new RSPB wildlife reserve at Wallasea Island in Essex with the remainder destined for other regeneration sites.

“All of the excavated material from Crossrail’s western tunnels will be transported to Wallasea Island by freight train and ship to minimise the number of Crossrail lorries in central London. Work is underway to construct the new jetty at Wallasea Island ahead of the first delivery of excavated material next summer.”

Shaun Thomas, RSPB Director of Operations said: “The RSPB is delighted to be working with Crossrail at Wallasea Island. This excavated material will help create new coastal habitats where some of the UK’s most incredible wildlife will thrive. And it’s not just wildlife that will benefit from this partnership, the local communities, families, tourists and nature lovers will be able to visit and enjoy Wallasea Island for generations to come.”

C300 western running tunnels contractor BFK (BAM/Ferrovial/Kier JV) will shortly appoint a rail freight operator to transport excavated material from Royal Oak to Northfleet.

 

 

Complex cross-London logistics

Freight trains will travel from Westbourne Park to Northfleet via the Great Western Main Line, the Greenford Loop, West London Line, Clapham and Lewisham. Up to five freight trains will operate from Westbourne Park on Mondays to Saturdays with up to four trains on Sundays.

To enable these freight trains to operate, additional sidings will be constructed at Westbourne Park with improvement work undertaken to track and embankments on the Greenford Loop.

Excavated material from the eastern tunnels (running from Limmo Peninsula to Farringdon) will emerge from the Limmo shaft. This material will be transported via conveyor belts to Instone Wharf for direct loading onto ships and onward transportation to Wallasea Island.
For the Thames Tunnel which will be constructed between Plumstead and North Woolwich, the excavated slurry material will emerge at the Plumstead Portal, where it will be filter pressed to reduce its water content before transportation for reuse.. [CW]

 

 
 

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Content compiled and edited by:
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Page updated: October, 2011

 

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