Latest from Tunnels and Tunnelling


Brenner BT research may improve tunnel sustainability
23 February, 2021 Drainage water from the Brenner Base Tunnel (BBT) could be used to supply sustainable energy to residential districts.
  • BTS unveils a new website
    To complement its 50th anniversary celebrations, the British Tunnelling Society (BTS) has launched a new website to reflect the growing diversity of knowledge and services which it offers to BTS members and others interested in tunnelling.
  • Trimble launches ‘fast’ 3D-scanning total station
    Trimble has launched the SX12, hailed as the next iteration of the company’s 3D-scanning total station and said to provide ‘fast, efficient data capture’ for surveying, engineering and geospatial professionals.
  • Hudson Tunnel gets Biden funding boost
    Trump administration policy, which had effectively blocked funding for the construction of a rail tunnel under the Hudson River, has been rescinded by the US Department of Transportation, thanks to a policy reversal inspired by the Biden presidency.


Hyperloop: Establishing The Basics
29 January, 2021 In the recent ‘BTS Hyperloop Challenge (Tunnels for Hyperloop)’ report undertaken on behalf of the British Tunnelling Society, Bill Grose outlined the basic requirements for Hyperloop infrastructure. The following is an extract from the report.
  • Pushing for victory
    A National Grid project to push a 5km pipeline under an estuary of global importance to wildlife has resulted in the world’s longest pipeline river crossing in a tunnel, safeguarding the UK’s gas supply for a century and earning a place in Guinness World Records. Julian Champkin reports
  • Hyperbaric interventions
    Tunnel projects often use compressed air techniques to stabilise the tunnel face. Work in compressed air in tunnels – increasingly referred to as hyperbaric operations – began in the 1830s. Although Lord Cochrane obtained a patent for the concept of using compressed air to stabilise soft or loose-flowing ground at the face of an excavation, it was a Frenchman, Jacques Triger who is credited with first using the technique for shaft sinking in northern France. Around 1874, James Greathead designed a compressed-air shield to construct the Woolwich Tunnel in London.
  • Fire Performance of PC Segmental Linings
    Explosive spalling in tunnel linings during fires is often attributed to vapour pressure build-up within the segments. In this article, Stephen Doran suggests that there is another factor at play which is more responsible for the phenomenon
  • West Link’s Korsvagen Challenges
    Dr Klaus Rieker of Wayss & Freytag Ingenierbau discusses the various construction techniques and procurement methods used for tunnelling the Korsvägen Section of Gothenburg’s new West Link rail line