Features Archive

Archive of features from the global tunnels industry

Features By Date

September 2018


Metropolitana Di Napoli
21 September 2018 Paola De Pascali talked to Giuseppe Molisso, Ansaldo’s project director, about challenges met during construction of Naples Metro Line 6, situated in a dense historical and artistic environment

Tunnellers wanted
21 September 2018 Alex Conacher interviews Ivor Thomas, tunnel manager for Bam Nuttall, who has spent the past couple of months transitioning from vice chair to chair of the BTS. He will lead the society until 2020

Steering the ship
21 September 2018 Alex Conacher speaks with Mark Leggett of Mott MacDonald as he takes the immediate past chair position at the British Tunnelling Society and looks back on his two years at the helm

Helical lining
21 September 2018 Behzad Khorshidi, of McNally Construction presents a lining system comprising a single helical ring installed during TBM advance

Risk management in major projects
05 September 2018 Four speakers from across the tunnelling industry gave their perspectives on the management of risk in tunnelling and major infrastructure projects at the October 19 British Tunnelling Society meeting. Bill Grose introduced the topic and set the scene with lessons from history, Kevin Province spoke about catastrophic events and some observations on best practice, Nigel Legge discussed causes of tunnelling failures and methods of risk management, and Patrick Barney gave the perspective of the insurance industry. This report was prepared by Martyn Noak of CH2M

Results driven
05 September 2018 A survey earlier in the year found a majority in support of updating the International Tunnelling Insurance Group’s code, T&T reports

Keep moving
05 September 2018 Nicole Robison and Paola De Pascali look at innovative ways to bring equipment and materials from the factory floor to the bottom of the tunnel shaft

One big bore
05 September 2018 Rail projects across North America are considering single tunnel drives, Nicole Robinson reports

August 2018


Changing safety culture
29 August 2018 Leah Jacobs looks at her own contribution to the Waterview Connection project in New Zealand

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

Under the Olive trees
29 August 2018 Paola De Pascali visits the Trans Adriatic Pipeline’s landfall site in Italy, where the locally controversial pipeline will pass through a microtunnel at a depth of 20m to transit from an off-shore to on-shore supply line

Four seasons
29 August 2018 To relocate utilities on Calgary’s Glenmore Dam, Ward & Burke needed to work in an environmentally sensitive and highly visible public space, Nicole Robinson reports

Kia Ora, new Zealand
24 August 2018 Alex Conacher speaks with Bill Newns, chair of the New Zealand Tunnelling Society (NZTS), as the antipodean nation breaks away from the Australasian Tunnelling Society

Reassessing exposure to silica
24 August 2018 Donald Lamont looks at the classification of silica as a carcinogen and the implications for tunnelling

July 2018


A war against etna
26 July 2018 Paola De Pascali visited worksites of the Nesima-Misterbianco and Stesicoro metro, which form part of the Circumetnea railway in Catania, Sicily

Lidar down the line
26 July 2018 Over the last decade, the geotechnical applications of LiDAR (Light Detection and Ranging) in tunnelling environments have become well publicised and has been reflected in its high demand from contractors, engineers and geologists worldwide. Here, Daniel Scully, pre sales monitoring engineer from geospatial technology supplier 3D Laser Mapping, discusses how this may impact on the sector

Northside Excavation
26 July 2018 Paola De Pascali speaks with City of Chicago engineers about the challenges of working in a dense residential area to build the Albany Park Stormwater diversion tunnel

Carnwath road
26 July 2018 Paola De Pascali met Ben Green, delivery manager for the West section of the Thames Tideway Tunnel and Ivor Thomas, tunnel manager for the joint venture of Bam Nuttall, Morgan Sindall and Balfour Beatty, which is coming to terms with the challenges of working in confined spaces at the Carnwath Road site for the Tideway project

Quito Metro
25 July 2018 Acciona, currently engaged in the construction of the Quito Metro, spoke with Alex Conacher regarding the project

Advanced Tunnel modelling
16 July 2018 Ioannis Vazaios of Queens University and Nicholas Vlachopoulos of the Royal Military College of Canada discuss the modelling of diverse tunnelling conditions and integration of the appropriate numerical modelling technique into the design process