Latest from Tunnels and Tunnelling


Kpone power plant drives complete
19 January, 2018 Ghana – Cooling lines for a new oil and gas power plant close to Accra called for a microtunnelled solution. Two tunnels, one for sea water intake and the other for outfall were constructed by Coleman Microtunnelling (a subsidiary of Australia’s Bothar Group) using a 2.5m-diameter Herrenknecht AVND2000AB utility tunnelling machine.
  • Bergen Point tunnel contract moves forward
    US – Suffolk County Department of Public Works (SCDPW) in New York awarded the Bergen Point WWTP outfall replacement contract to low bid contractor OHL/Posillico/SELI Overseas in January.
  • Versaflex merges with Raven
    US - Versaflex and Raven Lining Systems announced this week that the two companies have merged, effective January 1.
  • SAK Construction announces Slipptech deal
    US – Sipp Technologies CEO/CTO Kent Weisenberg announced 17 January an agreement with SAK Construction for exclusive installation rights of its Sipp Steel robotic lining technology. Pursuant to the agreement, SAK is the sole national installation contractor for Sipp Tech’s multidimensional, robotically installed, composite pressure pipe lining system.
  • German young professionals group launched
    Germany - December’s Stuva conference hosted the launch event for the Stuva Forum for Young Engineering Professionals (Stuva YEP). Approximately 150 young engineers attended the launch event and currently the organisation is loose, with updates and announcements being distributed by email.


Farnworth tunnel refurbishment project
26 December, 2017 Eoin Murphy from OTB Engineering discusses the modernisation of Victorian tunnels. This paper was a runner-up for the 2016 Harding Prize
  • Cavern configuration
    The largest tunnelled excavation in Los Angeles, part of the Regional Connector Transit Corridor, will be constructed at relatively shallow depth below existing infrastructure including significant utilities and historic buildings in a seismically active area. Carlos Herranz, Zsolt Horvath, Justin Liandes and Derek Penrice of Mott MacDonald describe the approaches taken to mitigate this design and construction risk
  • Modern tunnelling risk
    As a review of the Tunnel Code of Practice gets underway Tunnels & Tunnelling talksto the insurers behind London’s Crossrail which broke new ground in project insurance
  • Picking favourites
    Sandvik’s vice-president for tunnelling drills Pekka Nieminen shares his career highlights, from complex rock in Switzerland to computerised drilling jumbos in South Korea
  • High speed revolution?
    California is the first state in north america to begin work on a high speed rail system. with its diverse geology as much as 80km could be in an underground alignment. Nicole Robinson reports on the challenging geologic conditions for what are potentially the first tunnels to bid


Expanding Engagement
17 January, 2018 Montreal, home to miles of underground city amenities offering residents access to shopping, dinning, transit and entertainment, while connecting them to above ground buildings and facilities—a network especially appreciated during the harsh winter months—played a perfect host for Han Admiraal and Antonia Cornaro of the International Tunnelling and Underground Space Association’s Committee on Underground Space (ITACUS).
  • What’s the risk?
    This month I am stealing a comment hook from the British Tunnelling Society again. At the October meeting, the evening’s lecture was on the management of risk in tunnelling and major infrastructure projects.
  • Bigger isn’t always bad
    The global tunnelling industry is worth USD 1.5tr, according to a new report released in August by Timetric. Leading the pack is Europe, with a project pipeline of almost USD 575bn, surpassing Asia-Pacifi c by a mere USD 10bn. The report attributes this economic success for the region to mega-projects for high-speed and metro rail system expansion.
  • The Nuclear Solution
    Balfour Beatty has announced that it is EDF Energy’s preferred bidder for the Hinkley Point C nuclear power station tunnelling and marine works package. The four-year contract will involve the construction of three tunnels for a total of 9.5km in length and 7m in diameter. The tunnels will form part of the cooling system required.


    14 Mar 2018 - 16 Mar 2018 Organisers: RISE Research Institutes of Sweden
    25 Mar 2018 - 29 Mar 2018 Organisers: Benjamin Media
  • INTERtunnel
    25 Mar 2018 - 28 Mar 2018 Organisers: Mac Brooks