Tunnelling has been completed for the second phase of Singapore’s S$10bn (£5.8bn) Deep Tunnel Sewerage System (DTSS) project, which will boost the country’s water recycling capacity.
DTSS was conceived in the 1990s, as Singapore’s national water agency Pub was investigating cost-efficient and land-efficient ways to reclaim and recycle water. Prior to…
Main Point: Grenfell's internal fire spread Once again, discussion of the reasons behind the Grenfell disaster focus only on the inflammable cladding panels (NCE, July). However, in a report by Dave Parker in the August 2017 edition of NCE, it was spelt out very clearly that the fire which engulfed…
Innovative moving formwork is helping to speed construction of High Speed 2’s Copthall Tunnel in north west London.
Copthall Tunnel is one of five green tunnels being built along Phase 1 of High Speed 2 (HS2) between London and Birmingham. Situated between HS2’s Northolt Tunnel and the Colne Valley Viaduct, the…
The concept of smart motorways arose because of a need for extra traffic capacity set against the inability to obtain land for various reasons. Now that so much investment has been made and serious safety implications have so obviously arisen, surely it is time to re-examine objectives. When motorways are…
Tunnelling technology has taken huge strides forward in the last 50 years to deliver ever more complex and larger projects, but what challenges must the sector address over the next 50 years?
The early 1970s saw the foundation of the British Tunnelling Society, the opening of the Kingsway Tunnel under the…
An exploratory tunnel driven ahead of the main Brenner Base Tunnel bores through the Alps is helping contractors meet the challenges in building the world’s longest underground railway corridor.
Tunnelling through robust rock with complex fault zones – fractures between two blocks of rock – is characterising construction of the Brenner…
After years of planning wrangles, construction of the Silvertown Tunnel in east London is finally underway.
By the time Christmas arrives, contractor Riverlinx’s project manager Ivor Thomas hopes that the Herrenknecht tunnel boring machine (TBM) currently driving the Silvertown Tunnel will have passed safely under the Thames. This would be a…
Constructing Tideway’s largest shaft at Kirtling Street.
The Kirtling Street shaft on London’s Tideway super sewer project has a diameter of 30m, making it larger than any other across the entire Tideway project. Peri’s engineering team worked collaboratively with the Ferrovial Laing O’Rourke JV (FLO) site team to deliver a temporary…
The construction of the first cross passage linking the northbound and southbound High Speed Two (HS2) tunnels at Chilterns has been completed.
Cross passages are being built for use by train passengers during an emergency. When passengers have to evacuate a train, they can walk through these passages into the other…
Authorities in the Australian city of Brisbane have unveiled plans for an AU$9.5bn (£5.56bn) 12km long tunnel to the north of the city which could help alleviate traffic congestion and boost the local economy.
An in depth study found that a new tunnel stretching from Bald Hills to Kedron could be…
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