Latest from Tunnels and Tunnelling


CSA tunnel safety committee appoints new chair
20 July, 2017 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.
  • 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.
  • HS2 Phase One Stage One winners announced
    Great Britain - The High Speed Two project has announced the winning bidders to construct the first stage of the first phase of the project, which is split into three ‘Areas’.
  • VDMA releases core-drilling safety brochure
    Germany - The core-drilling equipment working group of the VDMA has produced a document describing how to safely fasten core-drilling equipment. The work was carried out in cooperation with Detlev Borstell of the University of Koblenz.


Draw from Experience
06 July, 2017 Wellpoint installation under hydraulic pressure for dewatering for cross passage construction on Toronto’s Eglinton Crosstown LRT project
  • 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
  • Joint effort
    Sarah Wilson and William Edgerton of McMillen Jacobs Associates report on use and abuse of the schedule during procurement and construction
  • 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


Everything in moderation
05 July, 2017
  • 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.
  • 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.
  • 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.
  • Confidence in conferences
    Parallel technical sessions seem to irritate conference goers, with particularly awkward setups being remembered and discussed for years after the event.