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Divik Bandopadhyaya Interview
30 December, 2021
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

Dewatering London
29 November, 2021
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

Learning from three great challenges
07 May, 2021
Mehdi Hosseini of London Bridge Associates reports on the recent BTS talk – ‘Three Great Challenges: Experience from TBM Tunnelling in Difficult Ground’ – given in January by Robbins president Lok Home

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

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

BTS celebrates 50 years
19 November, 2020
In February 2021, the British Tunnelling Society will be 50. To celebrate, it is compiling a major retrospective to chart half a century of momentous advances in tunnelling, recording the changes through the eyes of tunnellers. George Demetri takes a look

Extending the Tamoios highway
23 October, 2020
Located mostly in Brazilian rainforest, the Tamoios highway and tunnel project is of critical importance to the Brazilian economy. It was the subject of the BTSYM talk in September given by project director Pedro Soares dos Anjos. Report by Divik Bandopadhyaya of London Bridge Associates

Collaboration, communication, competence
08 October, 2018
Bob Ibell, former chair of London Bridge Associates and the British Tunnelling Society, delivered his Harding Lecture in June of this year. The lecture is given by an eminent speaker in the UK, usually every two years, in honour of Sir Harold Harding, the founding chair of the BTS. Alex Conacher produced this account of the talk, which reflected on 50 years in the industry and makes suggestions about where it should be going

Leah Jacobs
29 August, 2018
From a childhood passion for Lego to a management attitude for tunnel projects. Paola De Pascali spoke with Leah Jacobs, handover manager at London Bridge Associates and winner of the Harding Prize 2018

Test of Strength
17 August, 2016
The redevelopment of Bond Street Tube station has recently trialled a new method of early strength monitoring of shotcrete. Rhian Owen highlights the risks of spraying concrete and how Strength Monitoring Using Thermal Imaging (SMUTI) could help eliminate the dangers

Culture shift
11 July, 2016
A jobsite incident led subcontractor Joseph Gallagher to the conclusion that piggy-backing on customer behavioural health and safety schemes would no longer be suffi cient. Alex Conacher speaks to managing director Steve Harvey about the process the company went through to implement its ‘Living Incident Free Everyday’ (LIFE) scheme

Read, learn, think
14 March, 2016
After several requests from British engineers, Tunnels and Tunnelling speaks with Bob Ibell, chairman of London Bridge Associates about his career and the unusual set up of his current company, which was formed to escape the whims of corporate decision-makers, and secure work across the project life cycle.

Silvertown constructability
30 June, 2015
Constructability for tunnel designs has become an increasingly important input into project development for schemes like the new Silvertown crossing in east London, journalist Adrian Greeman Reports.

The Arrowhead Tunnels project
13 August, 2008
Following the British Tunnelling Society’s Annual General Meeting, Brian Fulcher, project director for Shea-Kenny Joint Venture, and Mike Bell, resident engineer for Hatch Mott MacDonald, described overcoming difficult ground conditions and water pressures with two hybrid hard rock TBMs for the Arrowhead Tunnels in Southern California, US

Drill and blast in confined spaces
29 April, 2008
At the joint meeting of the BTS and MinSouth on 21 February 2008, Richard Soloman, project manager for WECS, Damian McGirr, of Donaldson Associates, and Mark Thomas, site manager for WECS, described the drill and blast works on an urban flood alleviation tunnel in Bristol, UK

Monster tunnelling at Glendoe
16 April, 2007
At the March British Tunnelling Society meeting, members from the client, consultant and contractor gave an exhaustive presentation on one of the UK’s largest tunnelling projects

Factors in the Nicoll Highway Collapse
19 February, 2007
The Nicoll Highway collapse, in Singapore, rocked the tunnelling industry. Richard Davies, of Benaim (UK) Ltd, described the events that led to the incident

Competence in the tunnelling industry
01 November, 2002
Prior to their forthcoming lecture, which will be presented to British Tunnelling Society members on 21 November, Douglas Allenby of Edmund Nuttall, Bob Ibell of London Bridge Associates and Peter Jewell of Halliburton KBR, explain the need for an independent assessment of competence within the British tunnelling industry, and discuss current training initiatives

Insuring an industry
01 October, 2002
As a result of some recent high-profile incidents within the industry, insurers have been increasingly concerned that tunnelling was becoming uninsurable in the market. A joint working party, between the British Tunnelling Society (BTS) and the Association of British Insurers (ABI), has since produced a draft Code of Practice that would allow insurers to continue to offer cover. Presentation of the draft Joint Code of Practice to BTS members took place on 4 July 2002, followed by an in-depth discussion

Shotcreting in London Clay
09 June, 2001
Despite the criticisms the New Austrian Tunnelling Method has received – of the practice, if not the theory – following a series of construction collapses, the benefits of sprayed concrete linings cannot be ignored, assuming risk can be minimised.