Latest from Tunnels and Tunnelling


BTS-Warwick soft-ground CPD course is online 15-17 June
05 May, 2021 Knowledge and concepts required by engineers to undertake tunnel design in soft ground are key areas covered by a new online CPD course devised by the British Tunnelling Society (BTS) and Warwick University.
  • Final breakthrough on Copenhagen M4 line
    The final tunnelling breakthrough on the construction of Copenhagen’s M4 Sydhavn metro extension occurred recently when TBM Olivia holed through at Havneholmen station.
  • Crews ready TBM for Ship Canal excavation
    MudHoney – the 6.6m-diameter Herrenknecht TBM that will bore Seattle’s US$570m Ship Canal Water Quality Project (SCWQP) – has been lowered into the 37m-deep shaft at Ballard where crews are putting the finishing touches to the machine’s assembly. It is due to start mining in summer 2021.


Band of brothers or distant cousins?
30 April, 2021 Martin Knights FREng, former ITA President, compares the functions and fortunes over the past 50-odd years of the British Tunnelling Society and the International Tunnelling Association
  • Tunnel vision or visual twins
    Barry Bassnett, founder of Astrea and Richpix, describes a new, relatively straightforward method of capturing asset condition using photographs without the need to resort to point clouds
  • A most ambitious conservation project
    Detractors of the Stonehenge Tunnel might be surprised to see it defended by a pillar of the conservation community. But Prof Tim Darvill argues that the tunnel is a well-researched tool of conservation using state-of-the-art approaches
  • Valley Vision
    Bernice Alaniz, Gretchen Baisa and Ronak Naik of VTA and John Caulfield VTA consultant discuss the proposed extension to California’s Bay Area Rapid Transit (BART) regional rail system
  • AI and Machine Learning
    Best use of artificial intelligence in tunnels will need data strategies plus experienced oversight, writes Patrick Reynolds