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Tideway dismantles shed after five years’ tunnelling
01 December, 2023
An acoustic shed built to enable the construction of part of London’s Tideway is being dismantled after years of tunnelling work in Greenwich.

ITA Tunnelling Awards winners revealed
27 November, 2023
The winners of this year’s ITA Tunnelling Awards were revealed on Friday.

Half of HS2 Chiltern Tunnel cross-passage mining complete
23 November, 2023
Mining has been completed on half of the cross-passages for HS2’s longest tunnels.

STUVA 2023
27 October, 2023
The STUVA conference takes place in Munich in early November and promises a packed programme with varied discussions plus a busy exhibition

Joint Technical Event - Geopolymer Concrete in Tunnelling and other applications: Developments in ultra-low carbon concrete
24 October, 2023
Event Date: Thursday 9th November 2023 at 18:00 hrs

Secondary lining completed on Tideway
06 October, 2023
London’s new super sewer, Thames Tideway, is one step closer to being delivered following the completion of the final section of secondary lining.

Tunnelling completed on London Power Tunnels
03 October, 2023
National Grid’s £1bn (US$1.2bn) London Power Tunnels (LPT) project has achieved a major milestone with its final tunnelling breakthrough at Eltham substation in Greenwich, south-east London.

Stronger for the Next 50 Years
26 September, 2023
To help deliver on the ambitious agenda that got him elected barely 12 months ago, ITA President Arnold Dix has had a whirlwind year of near non-stop global travel. As promised to the organisation’s gathering on the occasion of the World Tunnel Congress (WTC), in September 2022, in Copenhagen, Dix planned to act fast and relentlessly in pursuit of the mission that got him elected, unopposed. Since then, he has built momentum for speedy delivery, barely stopping on the way. Here, he outlines for T&T readers what has been achieved so far and what is coming next

Extending Access Possibilities
26 September, 2023
Preassembled, needing only a small footprint and able to self-extend during shaft sinking as well as remain for permanent use afterward, XL Industries’ XE5 mechanised access lift system has worked on some major tunnel projects

From Gold Mine to Hydroelectricity – Kidston Pumped Storage Project
26 September, 2023
At the annual joint BTS and MinSouth meeting, held on 9 February at the Institution of Civil Engineers, in London, Clare Önal – a Principal Engineer with the tunnels team of Mott MacDonald – gave a presentation on the conversion of an abandoned gold mine at Kidston in Queensland, Australia, to a pumped storage hydroelectric (PSH) scheme. Andrew Hindmarch, Senior Principal Tunnel Engineer of Mott MacDonald was the rapporteur

Bookings open for BTS health and safety course
19 September, 2023
Bookings are now open for this year’s BTS Underground Health & Safety Course.

UK Power Networks employs robot for tunnel inspections
25 August, 2023
A robotic dog is changing the way UK Power Networks carries out tunnel inspections.

HS2 contractors prepare to store Euston Tunnel TBMs
17 August, 2023
With the news last week that two HS2 TBMs will be stored under Old Oak Common Station until the government gives the go-ahead for the Euston Tunnel, contractors are now tackling the logistics.

Grey cast iron linings – new structural insights
24 July, 2023
The Harding Prize Competition is named after the founder of the British Tunnelling Society, Sir Harold Harding, and is for entrants under the age of 33. Shortlisted papers were presented to the BTS evening meeting on 13 April, at the Institution of Civil Engineers, in London. Agustín Ruiz López, postdoctoral researcher with the Department of Civil and Environmental Engineering, Imperial College, London, was a runner-up in this year’s Competition with a paper entitled ‘New insights into the structural behaviour of grey cast iron tunnel linings’. It is published here with the author’s permission

Geopolymer concrete in tunnelling
24 July, 2023
At the monthly BTS meeting at the Institution of Civil Engineers, in London, in March 2023, John Day, Chief Technical Officer of Wagners EFC Pty Ltd, Charles Allen, Director of OTB Concrete, and Richard Sutherden, Engineering Director with Murphy for the HMJV (Hochtief- Murphy Joint Venture) provided perspectives on the use and future potential of geopolymer concretes, and the Earth Friendly Concrete in particular, in underground applications

Waste disposal: engineering the key nuclear challenge
24 July, 2023
Scientists agree that geological disposal is the best solution when considering the very long-term storage of high activity nuclear waste materials but to develop such a massive engineering project requires community buy-in from the get go. By Steve Reece, Head of GDF Siting at Nuclear Waste Services

Counting carbon, and more
24 July, 2023
What gets locked into plans comes from the early thinking gone into the endeavour. Same for projects, such as underground infrastructure. Or anything.

Hidden subterranean garden revealed in London’s Tideway Tunnel
30 June, 2023
Tideway has today (30.06.23) unveiled Loo Gardens – a natural subterranean oasis – nested within the Thames Tideway Tunnel, also known as London’s ‘super sewer’, created to symbolise the healthier future of the River Thames.

Stories from 50 years of groundwater construction problems
26 June, 2023
For T&T, David Hartwell takes a long view to reflect upon construction challenges some tunnel projects experienced with groundwater. He was awarded the Skempton Medal by the British Geotechnical Association (BGA), in 2018, in recognition of his outstanding longterm contribution to understanding the interaction between groundwater and tunnelling. The BGA and BTS jointly heard his Skempton Lecture in February 2019

BIM in tunnelling - past, present & future
26 June, 2023
BIM enables unprecedented collaboration and information sharing in infrastructure development, yet better understanding of what it is, isn’t, and could be is needed, say Kurt Zeidler and Vojtech Ernst Gall, of Gall Zeidler Consultants