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

Collaboration, communication and competence updated
25 March, 2021
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 25 March, 2021 Utility grid projects bring a variety of tunnelling challenges. Report by Patrick Reynolds
Review of ITA working group 12 PSCL linings 24 March, 2021 Martin Knights, Independent Consulting Engineer, former ITA President and Chair of London Bridge Associates reviews the new ITA Working Group 12: Permanent Sprayed Concrete Linings guidelines
Grouting for ground improvement 24 March, 2021 Grouting in underground projects refers to the injection of pumpable materials into soil or rock formations to change their physical characteristics. It is one of the most used ground improvement techniques for underground projects and tunnelling applications.
Brexit and its effect on standards 24 March, 2021 Donald Lamont, a member of T&T’s Editorial Advisory Board and a member of ‘CEN/TC151 Construction machinery – safety’ looks at the impact of Brexit on machinery standards in the UK
Over the line 24 March, 2021 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
Tales of tunnelling 23 March, 2021 The British Tunnelling Society was inaugurated exactly 50 years ago. Julian Champkin talked to its members about the society and its immense contribution to tunnelling
Past present and future 23 March, 2021 This article, from September 1999 by Eric Snowdon and Myles O’Reilly examines the progress of UK tunnelling from the mid-19th century onwards, recounting innovations and achievements, examining present activity and assessing the prospects for UK tunnellers
Drill and blast tunneling 25 February, 2021 A form of blasting dating from the pre-explosive’s era involved excavating tunnels by lighting fires at the face and throwing cold water on the hot surface to crack the rock. Later on, blasting with black powder was invented and since then, there have been steady developments in explosives, detonating and delaying techniques, and in our understanding of the mechanics of rock breakage by explosives.
Laser scanning covers the points 25 February, 2021 Laser scanning and 3D virtual modelling were critical tools in the refurbishment of a deep shaft on London’s Thames Water Ring Main, resulting in a better foundation for future repair and maintenance. Julian Champkin reports
Lord of the rings 25 February, 2021 A new ring-build system is said to offer health and safety gains, but also cuts ring completion times by around a third - bringing significant cost savings. George Demetri reports
A service limit state design approach for SFRC tunnel linings 25 February, 2021 Sotiris Psomas, Director of Tunnel Structures at Cowie UK, looks at how to estimate mean crack-width for ‘strain-softening’ SFRCs which are usually adopted in tunnel- and shaft-lining applications
Tight Manoeuvres 25 February, 2021 Academia and site-based investigations are being combined in Norway to advance our understanding and performance of high-pressure grouting. Patrick Reynolds reports


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