Search Results: 'AECOM'

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North Bristol relief sewer
27 November, 2023
Tunnelling challenges on the North Bristol Relief Sewer (NBRS) Project were presented and discussed at the BTS Meeting in May by Dominic Barlow, Senior Project Manager, and Adam Evenden, Project Engineer, of J Murphy and Sons Ltd. This report on the meeting was prepared by Dominic Barlow and Adam Evenden

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

Carbon saving push boosts PSCL development
24 July, 2023
Carbon saving is a new boost to further development of Permanent Sprayed Concrete Lining (PSCL), says Benoit de Rivaz, technical director for Bekaert BP Underground Solutions

Packed schedule in Boston
28 June, 2023
TTNA previews the packed program for RETC 2023, in Boston, MA, in June

Probabilistic and AI ground models to predict soil transitions
19 June, 2023
Rajat Gangrade, Senior Tunnelling Engineer in Arup’s San Francisco office, gave an online talk for the BTSYM lecture in February 2022. He presented a methodology for quantitative assessment and probabilistic interpretation of soil transitions and other critical subsurface features important in tunnelling. Here, he provides a summary of his presentation and also a brief update on ongoing research and applications

Vital tunnels for utilities
22 February, 2023
Utility tunnels are among key underground investments in two major Canadian cities – Toronto and Vancouver

Vital tunnels for utilities
16 February, 2023
Utility tunnels are among key underground investments in two major Canadian cities – Toronto and Vancouver

CSO capture for cleaner water
29 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

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

Defying the quakes
17 June, 2021
Reconstructing an existing dam and building new intakes, outtakes and spillway form part of an ambitious 10-year programme in the drought-hit and earthquake-prone Santa Clara Valley, California. George Demetri reports

A good dose of fibre
11 June, 2020
Steel fibre-reinforced concrete and its historic use in metro tunnels was the subject of discussion at a seminar hosted by steel-fibre maker Bekaert. Paola De Pascali reports

In the maze
19 May, 2020
Paola De Pascali spoke with the deputy project director at MMC-Gamuda Hau Wei Ng about the challenges being faced at the SSP Line in Kuala Lumpur

City & Southwest
20 January, 2020
Alex Conacher visits the Sydney Metro’s second phase to speak with Terry Sleiman, project director for the contractor John Holland CPB Ghella, Hugh Lawson, project director for the client, and Kate Cole, occupational health and hygiene manager for Transport for NSW

Northern exposure
27 September, 2019
A round-up of tunnel work in the Nordic Forum

Corridor Connections
08 March, 2019
Federal, state and other agencies are working to bring super conducting maglev technology to the United States with an initial rail line between D.C. and Baltimore. Nicole Robinson looks at what the projects entails and what the tunnelling industry can expect

TAC Directors’ Annual Reports
26 October, 2018
Each regional director for the TAC writes a report in October sharing the status of work and forthcoming projects in the five chapters across Canada

TDUK turns one
08 October, 2018
Think Deep UK celebrated its first anniversary this summer. Paola De Pascali attended

Crossrail SCL Design
26 March, 2018
Mott MacDonald project director Rosa Diez looks at the work required for Crossrail’s contract C121 – sprayed concrete lining design

Design considerations
12 October, 2017
ACI recently drafted a new report as the first design guideline on FRC tunnel segments to provide specific guidance for this emerging technology. Mehdi Bakhshi, Verya Nasri and Federica Mercuriello of Aecom discuss how to implement the ACI 544 Guideline into tunnel design

Design Considerations
30 August, 2017
ACI recently drafted a new report as the first design guideline on FRC tunnel segments to provide specific guidance for this emerging technology. Mehdi Bakhshi, Verya Nasri and Federica Mercuriello of Aecom discuss how to implement the ACI 544 Guideline into tunnel design