Search Results:

You searched for

CSO capture for cleaner water
19 October, 2021
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

Set in stone
11 October, 2021
For centuries the home of quarrying and more recently mining of the eponymous stone, Portland, England could become home to an exciting new visitor attraction housed in a mine and demonstrating the potential of underground space. George Demetri reports

A challenge packed drive
11 October, 2021
Erez Allouche, Matthew Devitt and Tyler Horton of Stantec Consulting, and Keivan Rafie of Hatch (Vancouver) discuss the relocation of a gas pipeline microtunneled through complex soils and beneath twin railroads, a river and multiple utility lines

Digging the deal on infrastructure
11 October, 2021
George Demetri takes a look at the state of US infrastructure, the possible causes of its lacklustre performance and how it may be improved, taking in along the way the views of some high-profile engineers and consultants

Jerusalem caverns present challenges of biblical proportions
08 September, 2021
Based on a presentation by Dr Roberto Schuerch of Pini Swiss Engineers, technical journalist Roland Herr gives an overview of an outstanding underground project brimming with engineering challenges

Tackling Toronto’s CSO Woes
08 September, 2021
Toronto’s sewers are overloaded. Combined sewer overflows frequently spill into Lake Ontario, local rivers and streams. A major clean-up involving three separate tunnelling projects and more besides, is in progress. Julian Champkin reports

Closed form tunnel analysis methods
07 September, 2021
In the first of a series of articles, Stephen Doran looks at closed-form tunnel analysis methods, their background and how they can provide an insight into the underlying assumptions used in software

Tunnel vision
07 September, 2021
TunnelSkills – the national specialist training forum for the UK tunnelling industry – specialises in the application of immersive learning and new technology to improve training, learning and recruitment in the sector

NATM through challenging fault zones
07 September, 2021
Ryo Kashiwagi of Japan Railway Construction, Transport and Technology Agency (JRTT) discusses the challenges from tunnelling the double-track Shinkansen railway which is close to an existing highway tunnel in an extremely soft fault crush zone

Sustainable solutions
07 September, 2021
Arnaud Hochart, geotechnical and monitoring manager at Implenia, discusses the technical challenges encountered on Lyon’s Metro B Line extension, including the open-pored, high-permeability alluviums with the associated risks of slurry loss and ground instability

A focus on efficiency within tunnel ventilation
02 September, 2021
Worldwide, electric motors represent around 50% of global electricity consumption (EU). The need to achieve a more sustainable environmental future clearly requires focus on the subject of motor efficiency. Any gains in motor efficiency will have a directly influence on the fight against climate change through reducing global electrical consumption and related CO2 emissions.

Cool talk on Hinkley Point C
12 August, 2021
Matthew Fowler of Balfour Beatty gave June’s British Tunnelling Society online lecture on the offshore cooling water tunnels at Hinkley Point C nuclear power station and the offsite construction of some of the critical components. Report by Ana Barbosa of Jacobs

Learning from Istanbul
12 August, 2021
Prof Dr Nuh Bilgin, Chairman of the Turkish Tunnelling Society, and Sinan Acun, TBM Group Manager, Kolin-Kalyon-Cengiz Joint Venture discuss the lessons learnt in the complex geology of two EPB-TBM drives to the new Istanbul Airport

Spraying for success
12 August, 2021
Dr Alun Thomas of All2plan Consulting outlines some of the rudiments of sprayed concrete and gives a few tips that could prove useful to young engineers – and maybe to those not so young

Testing time for FRS permanent sprayed concrete linings
12 August, 2021
Benoit de Rivaz of Bekaert outlines a few test methods used to evaluate the behaviour of fibre-reinforced shotcrete for permanent sprayed concrete linings and how their results can optimise design and construction processes

Water mist systems and Road tunnel ventilation
12 August, 2021
Ingo Riess of Riess Ingenieur, Zurich, Switzerland, discusses the benefits and effects of water-mist systems on tunnel fires in road tunnels

Keeping tunnels safe
12 August, 2021
The critical role played by certified smoke extraction motors in keeping tunnels safe is explained by Pekka Uusitalo, Key Account Manager for ABB Motors and Generators

Getting the right fix
27 July, 2021
Panos Spyridis, engineer and professor of fastening and assembly technologies at the Technical University of Dortmund, Germany, clarifies various aspects of the design, specification and installation of fixings for tunnel projects

Delivering Selina
27 July, 2021
Shannon O’Keeffe, Senior Tunnel Agent for Costain Engineering looks at the complex logistics that were initiated to ensure the successful delivery of a TBM to a Thameside site for the boring of Tideway (Eastern Section)

Florence and Cecilia set off
27 July, 2021
HS2 is the largest transport infrastructure project in Europe. Julian Champkin had a lightening tour of the Chiltern Tunnel portal to see the first of the ten TBMs that will work on the project’s 51km twin-tunnels