Latest from Tunnels and Tunnelling
Dewatering London
Dr Toby Roberts, chairman of WJ Group, gave the BTS lecture online in September 2021 on the range of dewatering strategies used to manage groundwater for underground construction in the London Basin. Reported by Mehdi Hosseini of London Bridge Associates.
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Underground in Moscow
Moscow is constructing new metro lines at a rapid pace to better accommodate the city’s seven million passengers daily who use it. Julian Champkin spoke with Anna Merkulova, engineer and CEO of the Mosproekt-3 group of companies about the expansion programme.
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Tunnels facilitate water flow
Water system upgrades are keeping the North American tunnelling industry busy. Keren Fallwell reports.
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NGS 2022 abstract deadline extended…but time running out
Abstracts for the Nordic Grouting Symposium (NGS 2022) can now be submitted up to 21 January 2022, following a deadline extension by the organiser.
Abstracts for the Nordic Grouting Symposium (NGS 2022) can now be submitted up to 21 January 2022, following a deadline extension by the organiser.
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Herrenknecht wins twin TBM order for Sydney Metro West tunnels
Following a global tender process, the Acciona Ferrovial Joint Venture has contracted Herrenknecht to design, build and deliver two tunnel boring machines to excavate rail tunnels on the Sydney Metro West project, Australia.
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Breakthrough marks completion of Singapore Circle Line 6 tunnelling
Tunnelling works on Singapore’s Circle Line 6 have been completed following the breakthrough of a TBM at Cantonment station on 12 January, announced the country’s Land Transport Authority (LTA).
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TBM makes first breakthrough on Mumbai Coastal Road project
India’s largest-diameter TBM has holed through on the first of two tunnels which will form part of the US$1.6bn Coastal Road Project – a roughly 29km freeway running alongside Mumbai’s western seafront.
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Uncontrolled groundwater inflows the subject of BGA webinar
‘Thinking conceptually about groundwater problems’ is the British Geotechnical Association’s (BGA) next annual John Mitchell Lecture to be presented online on 18 January by T&T contributing author Dr Martin Preene.
LATEST FEATURES
Alden Spencer, Global Product Manager for ANSUL Vehicle Systems at Johnson Controls, explores the fire risks inherent in tunnel construction, the changing regulatory landscape surrounding the use of PFAS suppression agents, and how innovative, non-fluorinated solutions can help companies keep their operations safe, sustainable and profitable
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Divik Bandopadhyaya Interview
Aged 27, Divik Bandopadhyaya has just completed a one-year stint as chair of BTSYM. He discusses his education, interests and career to date, offering along the way some advice to newly-qualified tunnel engineers. George Demetri reports
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Squaring the circle
Lok Home, owner of Robbins, once sold his company to the Chinese then bought it back because he disliked what they were doing to it. He makes TBMs that cut the hardest of hard rock. Now he has made a TBM that breaks all the rules. Report by Julian Champkin
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Closed form elastic and plastic analysis methods Part 1
In the first of two articles, Stephen Doran sets out the historical development of some common closed-form analytical methods and discusses the limitations of their use
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No blanket solution
Variations in tunnels and inflows need different waterproofing solutions. Report by Patrick Reynolds
