Search Results: 'Seli'

Breakthrough on troubled SSDS
01 December, 1999

Future SSDS risk assessment
10 November, 1999

Thoroughbred development
15 October, 1999
Roadheaders are frequently referred to as versatile workhorses, which implies that they are examples of utility equipment rather than an important method of tunnel excavation. Technical Journalist Maurice Jones highlights their virtues and points out that, while such machines constitute a maturing technology, efforts are continuing to increase their applications and productivity.