Search Results: 'Southern Water'

Technological Innovation Drives The High-Quality Development Of The Shenzhen Metro
27 February, 2024
Under the guidance of the innovation-driven development strategy, Shenzhen Metro is undergoing a transformation in its development model, transitioning from rapid expansion to a focus on highquality development.

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

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.

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

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

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

Cross river rail to tackle Brisbane’s urban growth
29 November, 2021
Australia’s cities are engaged in some major underground rail projects. Sydney and Melbourne both have their metro schemes. Brisbane is host to another – and also to the Olympic Games. Julian Champkin reports

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

A novel concrete arch pre-support system
27 July, 2021
Ehsan Azadi of Tehran-based Pajoohesh Consulting Engineers discusses the behaviour of surface settlement using numerical simulation methods (Plaxis 2D and 3D) in a hardening soil model and the use of a new concrete arch pre-support system (CAPS) on Line 2 Metro, Mashhad

Geothermal energy from safe rock zones
17 June, 2021
Writing for the Swiss Federal Office of Energy, Dr Benedikt Vogel looks at recent research aimed at enabling better and more efficient methods of extracting geothermal energy

Pushing for victory
29 January, 2021
A National Grid project to push a 5km pipeline under an estuary of global importance to wildlife has resulted in the world’s longest pipeline river crossing in a tunnel, safeguarding the UK’s gas supply for a century and earning a place in Guinness World Records. Julian Champkin reports