Search Results: 'Erstfeld'

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