Search Results: 'Rowa'

Life with the Seri Nala
30 September, 2019
With excavation complete, engineers from the Afcons side of the Strabag- Afcons joint venture recall the most challenging moments from the southern drive of the Rohtang Tunnel. Alex Conacher reports

Crossrail’s drilling rig
20 February, 2017
Crossrail is using a bespoke automated drilling rig for boring service connection holes, and fit out contractor ATC says that the investment has already paid off

Ceneri: A link in the chain
31 December, 2015
The Ceneri base tunnel is an integral part of the New Rail Link through the Alps. Sally Spencer Reports.

Rohtang praying for rock
17 January, 2013
The Rohtang Pass tunnel in India’s northern Jammu & Kashmir region is an ambitious project to provide year-round access to a remote group of communities. The Strabag- Afcons JV has hit woeful ground conditions and braved the worst the Himalayas can throw at it as work on this infrastructure lifeline slowly progresses. Alex Conacher speaks to Peter Reichenspurner, Strabag’s technical area manager for Asia and Africa, tunnelling division

Strabag buys shield machines for Koralm
20 May, 2011

Powering up at Linthal-Limmern
14 March, 2011
The topography of alpine and similar mountainous areas presents both many challenges and opportunities for tunnelling engineers. Whereas the current focus has naturally been on rail base-tunnels, the business of constructing and expanding hydropower facilities continues apace. Maurice Jones summarises recent developments at the Linthal-Limmern hydropower complex

Finishing Gotthard
14 March, 2011
Work is getting into full swing on the 15.4km long Ceneri tunnel that completes the Gotthard high-speed railway axis in Switzerland. Adrian Greeman visited the site

The unforeseen struggle in the south
06 December, 2010
Unexpected squeezing, rockbursting and heat made the southern contracts exceptionally difficult testing both human and technical capabilities

Deep down and squeezed tight at Sedrun
06 December, 2010
South African gold mine shafts, German coal seams, World War U-boat construction and Swiss mountain railways all helped on the difficult Sedrun section

Record drives at Amsteg and Erstfeld
06 December, 2010
The two drives for the northern section of Gotthard made the fastest progress including a world record TBM day rate. But they were not without their problems

Drilling Rohtang
11 November, 2010
Dywidag International has started excavation at the Rohtang Pass road tunnel in Himachal Pradesh, India. Report by Patrick Reynolds

Aker Wirth will deliver TBM to Switzerland
12 February, 2010

Segmental success in detailed control
30 January, 2009
Technical journalist Maurice Jones examines some recent developments in improving both efficiency and quality of segmental linings

Congratulations from a collaborator
03 September, 2007

Robbins double at Dahuofang
19 February, 2007

Wirth's Chinese progress
21 October, 2005

Sedrun - Gotthard's toughest challenge
01 November, 2004
Planning to drive sections of the world's long-est tunnel from its centre point, 2500m underground in variable, squeezing ground, was indeed a challenge. However, using a combi-nation of mining and civil tunnelling methods, it is a challenge that many manufacturers have been lining up to meet with innovative equipment, reports Maurice Jones

A Swiss tunnelling experience
01 May, 2004
The March 2004 meeting of the British Tunnelling Society provided an update on the Steg-Raron contract for the Lötschberg Tunnel in Switzerland, presented by David Darcy of Balfour Beatty and Willi Gmür of Gmür Baumanagement, Balfour Beatty's representative in Switzerland

Mucking Out & Transport Products
01 August, 2003
The latest mucking out and transport products

Gotthard east tube gets going
02 July, 2003