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T&T Awards 2011 results
15 December, 2011

Lee Tunnel cutterhead lowered
15 December, 2011

Crossrail awards Farringdon and Whitechapel
30 November, 2011

T&T Awards shortlist
09 November, 2011

Algiers metro finally open
08 November, 2011

Deep drive at El Teniente starts
01 November, 2011
Vinci group has begun the first excavation in its major tunnelling contract as part of the expansion of the El Teniente copper mine in Chile for the national mining corporation Codelco, the world’s largest copper producer.

Laser guided segment precision
20 October, 2011
T&TI visits the Morgan Sindall precast facility at Ridham Dock in Kent, UK. The plant is currently supplying segments for Thames Water’s Lee Tunnel. Alex Conacher takes the grand tour

TCR a century on: five worksites in one
18 October, 2011
Tottenham Court Road is undergoing two major development projects, for Crossrail and London Underground. The ageing station’s concrete structure has had over 100 years to set and with few records to warn of what lies beyond it, tunnellers have to be ready for anything - there are even rumours of a discarded TBM. Alex Conacher visits the site and meets with resident tunnelling bigwigs

Where the work is
18 October, 2011
As T&TI goes to press the general and business media are awash with stories of economic gloom and dire predictions, and yet the tunnelling industry in Western Europe seems relatively buoyant. Can this comparatively happy state continue? Maurice Jones checks on the major current and planned projects and the prospects for some big players headquartered in Western Europe

MVB completes first Beckton shaft sinking
12 October, 2011

Grouting supports tunnelling market
24 August, 2011
The principles of grouting to improve the stability of ground around underground excavations has been known for a long time, but greater attention to the basic questions of ‘where?’ and ‘when?’ has led to grouting operations that are much more sophisticated than pumping mortar into the ground more in hope than judgement. Maurice Jones explores some of the more advanced grouting techniques now being used and how they help make more tunnelling projects possible or easier

Membranes in the mix
22 July, 2011
There are many approaches to trying to keep a tunnel permanently dry, and as many factors in whether a method is a success. Maurice Jones enters the battle between competing membrane systems

Speeding freight under Antwerp docks
21 July, 2011
In the highest value current construction project in Belgium an international public-private-partnership (PPP) consortium is building an important rail link to the west of Antwerp to handle the booming freight traffic to and from the port. The work includes tunnelling under waterways in tricky, soft-ground conditions and utilising an existing, but unused tunnel. Maurice Jones reports from Antwerp

Connaught phoenix for Crossrail
15 June, 2011
Crossrail has been revealing the Connaught Tunnel in London’s Docklands to representatives of the media and stakeholders prior to work beginning on its modification. The project design involves some unusual refurbishment methods to enlarge the existing tunnel and preserve some Victorian features as Maurice Jones reports

Slurry breakthrough around Antwerp
14 June, 2011

Copenhagen cut
13 April, 2011
Detailed planning is underway for major excavations and tunnelling works on the Cityringen metro line in Copenhagen. Report by Patrick Reynolds

Final Crossrail tunnelling contracts awarded
07 April, 2011

Sinkhole spotted in Seattle
01 April, 2011

Crossrail station style revealed
23 March, 2011

Crossing the Bosphorus – again
11 February, 2011
As construction progresses on the record-busting Marmaray rail tunnel in Istanbul, financing is finally being put in place for a road crossing under the Bosphorus. John McKenna reports