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World News

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Contractor Pre-qualification for Hong Kong HATS Stage 2A sewer tunnelsFree

1 May, 2008

The Government of the Hong Kong Special Administrative Region will invite applications on 2 May 2008 for pre-qualification of tenderers for two construction contracts, Contract DC/2007/23 and Contract DC/2007/24, which form part of the Harbour...

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First TBM finishes at Malmo

29 April, 2008

The first of the twin EPBMs boring the rail tunnels for Malmö’s Citytunnel project holed through last month to complete its drive at the central station – earlier than originally scheduled, and the second could breakthrough before the end...

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TBM makes good progress

29 April, 2008

Boring resumed last month with the 9.46m diameter EPBM on the running tunnels of São Paulo metro’s Line 4 when it was re-launched from Oscar Freire following a lengthy stop due to works at the station.

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CVA blames ground for collapse at Pinheiros

29 April, 2008

Point load stress on SCL lining, caused by an undetected rock mass in soft soil after heavy rains, has been identified as the likely cause of last year’s fatal collapse of the Pinheiros shaft and station cavern in São Paulo by an independent...

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Business and Finance

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Crossrail puts out pre-qualification call

6 May, 2008

Calls for expressions of interest were issued in early April to companies looking to provide overall programme and project delivery partner services, and also those seeking to operate as design consultants, for the Crossrail project in London.

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Cat expands into TBMs with Lovat buy

6 May, 2008

Canadian tunnel boring machine manufacturer Lovat was bought last month by Caterpillar, which paves the way for the international plant group...

Features

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Driving Kowloon’s Southern Link

April 2008

David Hake, TBM tunnel manager, for Link 200 JV describes the challenges encountered during the twin, stacked, slurry TBM drives for the Kowloon Southern Link project, in Hong Kong

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Heralding a new era in Hong Kong

April 2008

With a vast array of tunnelling works about to kick off in Hong Kong, regular T&TI contributor, Keith Wallis, takes a look at some of the region’s key forthcoming rail, water and road tunnels

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BTS

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Drill and blast in confined spaces

April 2008

At the joint meeting of the BTS and MinSouth on 21 February 2008, Richard Soloman, project manager for WECS, Damian McGirr, of Donaldson Associates, and Mark Thomas, site manager for WECS, described the drill and blast works on an urban...

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T&T North America

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Final breakthrough at Beacon Hill

29 April, 2008

On March 5, the second of two 4,300ft (1,3km) long TBM drives through Beacon Hill, in Seattle, broke through, marking the end of tunneling works on the scheme (T&TNA, May 2007, p19).

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Lake Mead No 3 Intake award due

29 April, 2008

The Lake Mead Intake No 3 project is shortly due to be awarded to the SA Healy/ Impregilo JV (T&TNA, Sept 2007, p6). Comprising 16,000ft (4.8km)...

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Dulles Link saga continues

29 April, 2008

Virginia officials are rallying to try and redeem the fortunes of the 24-mile (38.5km) long Dulles Metrorail project following a less than favorable assessment by the Federal Transit Administration (FTA) last month, which inferred that it...

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Canada Line ahead of schedule

29 April, 2008

In Vancouver, the Seli-SNC Lavalin JV, InTransitBC, has completed the Canada Line bored tunnels ahead of schedule (T&TNA, Mar 2007, p13).

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