Latest from Tunnels and Tunnelling
Branch to battersea
Paola De Pascali met TFL senior project manager Mark Thompson and FLO engineeringmanager, Oliver Newman to talk about the Northern Line Extension project
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Upgrading bond Street
London Underground Bond Street Station Upgrade Project (BSSU) is due for completion and open to public in April. In December’s British Tunnelling Society Meeting, the project was told from the...
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Karlsruhe cuts
Creating the first underground metro line for Karlsruhe in Germany has required a trilogy oftunnelling methods and extensive monitoring to protect the busy city
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Switzerland – Breakthrough on the Belchen Tunnel was achieved on 21 June. The road tunnel, which runs for 3.2km and has a cut diameter of nearly 14m, passes through the Jura Mountains between Basel and Lucerne and has been constructed to facilitate traffic flow while renovation work is carried out on two existing tunnels.
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Atlas Copco takes share of Swedish software company
Sweden – Atlas Copco has taken a 34 per cent stake of Mobilaris MCE, a Swedish software company that ‘optimises underground mining operations’ The company, based in Luleå, produces software that gives situational awareness in mines, real-time positioning and vehicle status information, as well as details on personnel and equipment on a 3D user interface.
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CSA tunnel safety committee appoints new chair
Canada - During the Annual CSA Conference in Halifax, Nova Scotia, ASI Marine’s group manager, Scott Black was voted in and appointed as the new chair of the CSA Z275.3 ‘Occupational Safety Code for Work in Pressurized Air Environments’, it was announced July 19.
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AASHTO publishes LRFD tunnel design and construction guide
USA - New guide specifications on load and resistance factor design (LRFD) and construction of road tunnels have been published by the American Association of State Highway Transportation Officials (AASHTO).
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Melbourne Metro Tunnel design build contractor chosen
Australia – A consortium of Lendlease, John Holland, Bouygues and Capella Capital will construct the AUD 6bn (USD 4.75bn) Melbourne Metro Tunnel Project. The contract covers main tunnelling works, five underground stations, station fit-out, mechanical and electrical systems and specific maintenance services for the infrastructure delivered by the package and commercial opportunities at the new stations.
LATEST FEATURES
Wellpoint installation under hydraulic pressure for dewatering for cross passage construction on Toronto’s Eglinton Crosstown LRT project
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Next exit
The Eglinton Crosstown LRT is Ontario’s largest transit expansion to date. Two contracts constructed 10km of underground alignment for the 19km line. Jordan Schreiner and Matthew Geary of Hatch, with Tibor Szekely of Metrolinx, discuss the completion of the East Tunnels and TBM removal
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Grouting 2017
grouting, Deep Mixing, and Diaphragm walls
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Joint effort
Sarah Wilson and William Edgerton of McMillen Jacobs Associates report on use and abuse of the schedule during procurement and construction
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On a grand scale
Atlanta’s water supply program will transform a quarry into one of the largest reservoirs inNorth America, Desiree Willis, technical writer for Robbins, reports
BLOGS
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National institution
In the UK the Institution of Civil Engineers (ICE) has been running a tunnelling exhibition. It follows on the heels of an exhibition for bridges, which was rumoured to have attracted 15,000 visitors. The challenge given to the engineers of the British Tunnelling Society by the institution was to promote the event enough to beat this goal by the time the exhibit closes in November.
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All the way up, all the way down
More rumblings from California as a SpaceX employee has posted a photo of Elon Musk’s newly acquired TBM to Instagram – before swiftly removing it. Before moving on, a quick glossary: SpaceX is the packleader of several companies that are vying to commercialise and reduce the cost of space travel; Elon Musk is its eccentric South African billionaire owner and Instagram is a social media platform for photographs that boasts 700 million users.
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Approaching the age gap
Two-thirds of job openings for engineers in Canada are related to retirement replacement, according to a report released by the association Engineers Canada.
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Confidence in conferences
Parallel technical sessions seem to irritate conference goers, with particularly awkward setups being remembered and discussed for years after the event.
