Search Results: 'Southern Water'

Amtrak awards first major contract for Frederick Douglass Tunnel
12 September, 2023
Amtrak has awarded the first of three major contracts for the Frederick Douglass Tunnel Program.

Buenos Aires water project continues to make progress
28 July, 2023
The second of two EPBMs has been launched for the Río Subterráneo a Lomas tunnel in Buenos Aires.

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

Toronto spotlights
28 June, 2023
TTNA spotlights a recent few milestones and interesting project developments in Toronto that have among them presented a variety of engineering challenges

Rod Young – Interview
13 June, 2023
Rod Young is the Chair of the British Tunnelling Society (BTS). Unlike many of his predecessors, his speciality is in microtunnelling. He talks to Julian Champkin about the importance of small-bore, and his hopes for the post-Covid BTS

Government launches National Underground Asset Register
11 April, 2023
The Geospatial Commission, part of the Department for Science, Innovation and Technology (DSIT), has launched a digital map – built by Atkins – that promises to revolutionise the installation, maintenance, operation and repair of underground pipes and cables.

Challenges and successes
27 March, 2023
A brief snapshot sample of large and small utility tunnelling challenges and successes across the globe over recent months

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

MWD for rock mass grouting at Stockholm Bypass
21 February, 2023
Research during tunnelling on Stockholm Bypass showed the utility of the Measurement While Drilling (MWD) fracturing index for determining rock mass quality and grout consumption, explains Jeroen van Eldert PhD, formerly of Lulea University of Technology and Trafikverket, in Sweden, and currently with Aeris Resources in Australia as a drill and blast engineer

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

Marine shaft construction with outfall tunnel connection
29 December, 2022
The Musaimeer outfall project in Qatar had many interesting technical aspects and construction challenges. In this feature, the second feature of the project by Gary Peach, and along with Khalid Saif Al-Khayareen, the works needed to build an offshore shaft that would be intercepted by a TBM, then to be buried, are discussed.

Southern Water launches market engagement phase 2
07 November, 2022
Southern Water has launched the second phase of market engagement for the Hampshire Water Transfer and Water Recycling Project.

Ready for Rogfast
26 September, 2022
Early excavation is underway for Norway’s world-beating Rogfast subsea road tunnel, which also calls for a large access tunnel and shaft construction from a midway island. Report by Patrick Reynolds

Research to reduce carbon in SCL
03 August, 2022
Research recently complete on low carbon sprayed concrete (LCSC), including work for HS2,is summarised by participants Chris Peaston of Peaston Concrete Consultancy, Chris Goodier, Sergio Cavalaro and Zhi Hu of Loughborough University, Michael Sataya of Arup, Stuart Manning of Shotcrete Services, and John Reddy of Ecocem

Amtrak launches procurement for tunnel replacement
23 June, 2022
Amtrak has issued a Request for Letters of Interest for the B&P Replacement Tunnel in Baltimore.

A long line of success
14 April, 2022
Dean Brox of Dean Brox Consulting reviews the benefits and successes associated with precast concrete tunnel linings when used for hydropower tunnels

TBM challenges on a demanding sea outfall
14 April, 2022
Gary Peach, project manager and consultant with Mott MacDonald (Doha, Qatar) discusses the challenges and management deployed to overcome and successfully complete what has been hailed as the Middle East’s longest storm and groundwater tunnel

Terratec delivers TBM for Bangkok cable project
28 February, 2022
Terratec is set to deliver the 4.27m EPB TBM for the South Bangkok Cable Tunnel Project in Thailand.

A cool way to tunnel
28 January, 2022
Tunnelling for the southernmost construction lot of the Brenner Base Tunnel runs below the Isarco River in Northern Italy and necessitated the use of a ground freezing technique that combines co-axial nitrogen and brine circuits. Julian Champkin reports

Tunnels facilitate water flow
29 November, 2021
Water system upgrades are keeping the North American tunnelling industry busy. Keren Fallwell reports