Features
Our editorial board comprises a specialist group of leading industry figures who, in conjunction with the TUNNELS editorial team, identify the main drivers of the industry helping to produce regular, thought provoking opinion pieces on the latest issues, challenges and developments.Latest Tunnels Feature
BTS launches Harding prize for 2022
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...
> read more
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...
> read more
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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
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
Tunnels facilitate water flow
Water system upgrades are keeping the North American tunnelling industry busy. Keren Fallwell reports
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
Cross river rail to tackle Brisbane’s urban growth
Australia’s cities are engaged in some major underground rail projects. Sydney and Melbourne both have their metro schemes. Brisbane is host to another – and also to the Olympic Games. Julian Champkin reports
Asset management: Not somebody else’s problem
Martin Knights FREng and former ITA President discusses the importance of the intelligent care of ageing assets and gives details of a new initiative tasked with producing guidance on the management of tunnels
Student TBMs battle it out in Las Vegas Boring contest
Elon Musk’s Boring Company held its first Not-A-Boring Competition in Las Vegas, Nevada in September which saw student teams from around the world compete to ‘beat the snail’. George Demetri reports on the outcomes
Terratec – Always Advancing
Incorporated in 1990, Terratec one of the world’s leading designers and manufacturers of Tunnel Boring Machines, encompassing all ground conditions and diameters – ranging from 0.60 to over 16 meters – as well as TBM back-up equipment, Raise Boring Machines and other custom-engineered products for the tunnelling and mining industries. Terratec's success is based on the experience and excellence of its engineering team. This team includes engineers with more than 40-years of experience in the design and manufacture of tunnelling and mining machines who have worked on some of the world’s largest underground projects. Terratec is also fully managed by engineers enabling quick and efficient solutions that meet customer expectations.
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
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
CSO capture for cleaner water
Jon Sickling, Tunnel Shafts Delivery Manager, Watercare Services, and Stefano Vittor, Construction Manager, Ghella-Abergeldie JV, outline details of New Zealand’s largest wastewater project – Auckland’s new Central Interceptor
Tunnelling the Thames
Sagar Sheth, Principal Tunnelling Engineer, and Richard Miller, Head of Tunnelling, both of Ramboll UK, describe the design checks and assurance services, risk and stakeholder management they provided during the construction of Tideway
