Latest from Tunnels and Tunnelling
Collaboration, communication and competence updated
The following article by Bob Ibell, founder and director of London Bridge Associates, is based on a past Harding Lecture and has been updated by the author in celebration of the BTS 50th Anniversary
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National grids
Utility grid projects bring a variety of tunnelling challenges. Report by Patrick Reynolds
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Over the line
Describing an early upgrade at Bank Station around 30 years ago during the DLR extension, Ken Spiby, then a Nuttall shift engineer, now LBA director, recalls some of his tunnelling experiences, extracted here from the BTS 50th Anniversary book
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BTS-Warwick soft-ground CPD course is online 15-17 June
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.
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.
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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.
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Herrenknecht trio making good advances on BBT
Three Herrenknecht TBMs boring south to north on the two main tubes of the Brenner Base Tunnel (BBT) continue to make good progress at the Italian construction lot Mauls 2-3.
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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.
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Excavation to start soon on Burnaby Mountain Tunnel
Crews are preparing to start excavating a 2.6km tunnel through Burnaby Mountain, western Canada, as part of a major expansion that will allow the country to better convey its crude oil to market.
LATEST FEATURES
Band of brothers or distant cousins?
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
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
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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
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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
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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
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AI and Machine Learning
Best use of artificial intelligence in tunnels will need data strategies plus experienced oversight, writes Patrick Reynolds
