Latest from Tunnels and Tunnelling
Monitoring of soil conditioning parameters during EPBM excavation
Sika employees Dr Oscar Marazzini, Kanokwan Chuanak, Philippe Doriot and Manfredo Belohuby, look at how lab results can be correlated and applied on site, and how lab trials can give reliable, usable results to improve the success of future projects, avoiding costly errors and delays.
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Shafts and caissons
Andrew Smith, retired estimating and technical consultant formerly with Joseph Gallagher Ltd looks at the construction of shafts and caissons using precast segmental linings, together with the use of sprayed concrete lining in shaft sinking operations.
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Digital drive
Digital technology promises multiple benefits and is making huge inroads in many sectors but its take-up in tunnelling and other infrastructure projects is still at relatively early stages. Report by Patrick Reynolds
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November 11 saw the publication of the first-ever comprehensive textbook on soft ground tunnel design.
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Moscow prepares to open stretch of longest underground line
Moscow is getting ready to open a section of metro on the Big Circle Line – described as the world’s longest underground metro.
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Komatsu adds V-series to hydraulic breaker range
Mining and construction equipment manufacturer Komatsu has announced it has expanded its range of hydraulic breakers for use in tunnelling and general construction.
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Sika to acquire MBCC Group (formerly BASF)
Switzerland-based construction and industry chemicals group Sika is to acquire MBCC Group, the former BASF Construction Chemicals.
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Implenia and Webuild win huge Brenner Base Tunnel contract
A 50/50 partnership between Implenia and Webuild has been awarded a US$736m contract to build part of the Austrian side of the Brenner Base Tunnel (BBT).
LATEST FEATURES
Young tunnel engineers can raise their profile and make their work visible to the civil engineering community by entering the Harding Prize, named after the founder chairman of the Society, Sir Harold Harding
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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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Low carbon concrete for shaft and tunnel linings
Low-carbon concretes are a welcome development but should be carefully used as some cases could see longer setting times, slower strength development and even increased embodied carbon, writes Charles Allen of OTB Concrete
