Search Results: 'Wirth'

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

The 2010 Harding Lecture (Part 2)
01 December, 2010
British Tunnelling Society, Harding Lecture, 15th April 2010

Finesse in tough environments
10 November, 2010
Technologies employed underground to ensure positional accuracy have advanced at great pace over recent years. The portable computer, data processor and laser have all but replaced the tape, notepad and pencil. These, together with the introduction of lasers as reference axes and the toughening of electronics, have led to major benefits in productivity. Maurice Jones reviews some of the latest developments

Aker Wirth will deliver TBM to Switzerland
12 February, 2010