Search Results: 'Wayss'

Uetliberg Tunnel first milestone
01 October, 2001

Contract set to go on Antwerp tunnel
21 September, 2001

Eight TBMs for CTRL 2 ordered
09 June, 2001

Speeding up the SWISS RAIL network
02 May, 2001
The 3.1km Önzberg tunnel in Switzerland is part of the country's Bahn 2000 project, a major investment programme aimed at improving intercity rail services. Work currently is on to complete shotcrete supported excavations.

Athens metro gears up for olympics
06 April, 2001

Skanska dominates with three CTRL contracts
01 March, 2001

CTRL awards green light project start-up
01 February, 2001

In at the deep end
05 January, 2001
The Netherlands has adopted large-diameter TBM work for soft ground tunnels with great enthusiasm. No where is this more evident than in the Westerschelde tunnel project where modern technology is set to open the relatively isolated Zeeuwsch-Vlaanderen province. However, such a challenging project has not been without its snags.

Fast route through Zurich
15 October, 2000
Zurich's new railway tunnel has made exceptionally good going southwards, but now the north end must pass under buildings, sometimes just a few metres down. It will be difficult work.

Singapore invests US$925m in expressway tunnel
14 October, 2000

Determination to overcome difficulties
01 August, 2000
No stranger to meeting difficulties the tunnelling industry was presented with plenty during the past year.

Boskalis/HBG merger off
01 July, 2000

Downtown double for Düsseldorf subway
11 June, 2000
It was in 1997 that a tender was issued for the construction of a 1123m shield-driven tunnel to carry a double track metro line linking the southern suburbs of Dusseldorf with the central station and downtown area. Chief Geotechnical Eng. S Jancsecz, Geotechnical Eng. J W Ebenhog, Chief Structural Eng. E Gurkan and Structural Eng. E Tuchscherer of the Department of Tunnelling and Underground Construction, Wayss & Freytag AG, Frankfurt am Main report on the project, the particular problems faced and how they were overcome

Driving beneath Buenos Aires
06 May, 2000
In its first five years' expansion plan to improve the potable water supply, Aguas Argentinas committed itself to spending $540m. As part of this plan, a 15.3km water supply tunnel has been built with a loan from the Inter American Development Bank. The new tunnel extends the existing tunnel network from the Saavedra connection structure to Moron. Future expansion is planned to take place in the 30 year long concession period. Nicola Della Valle, Production Manager,Wayss & Freytag-Sollazzo Hnos JV, describes this prestigious project.

Driving the Elbe Tunnel
30 March, 2000
The meeting of the BTS on January 20 took place in London at the Institution of Civil Engineers and was devoted to a paper by Martin Herrenknecht of Herrenknecht International on the Fourth Elbe Road Tunnel in Hamburg.

Buenos Aires water supply completion
25 March, 2000

Zimmerberg Tunnel: Zurich- Thalwil section
15 October, 1999
Claus Becker, Wayss & Freytag, Tunnel Construction and Civil Engineering, gives a progress report on the first part of the Zimmerberg rail tunnel, which is being excavated by a convertible TBM to cope with difficult ground conditions.