Search Results: 'Hochtief'

TBM development at the Weser Tunnel
01 March, 2004
Boring the 1.6km long twin-tube Weser Tunnel in northern Germany proved an exacting task for the construction team. The alignment's geology and hydrogeology pushed Mixshield TBM technology to, and beyond, its limits. Claus Wirtz of the construction JV leader, Hochtief, explains the project's challenges and how they were overcome

Shotcrete extremes at Kárahnjúkar
01 March, 2004

Lessons from C320's TBM interventions
01 February, 2004
Maurice Gallagher and Bob Brown, of J Murphy & Sons, Tony Ridley, of Tony Ridley Hyperbaric Associates, and Andy Swift, of Rail Link Engineering, discuss the use of compressed air for TBM interventions on the UK's CTRL Contract 320 "Thames Tunnels" and the project's use of oxygen decompression techniques

Full speed ahead on Sydney's rail link
01 February, 2004
The 12.5km long underground rail link between Chatswood and Epping in Sydney, Australia, is now in full swing. T&TI's editor, Tris Thomas, visited the site at the end of last year and reports on the project's tunnel construction and complex station cavern design