Search Results: 'Robbins'

Giant caverns for minute particles
13 November, 2000
Some of Europe's most interesting tunnel works are under way just outside Geneva, where a major expansion is progressing for the international research centre for particle physics, CERN. Adrian Greeman visited the sites in Switzerland and France for the vast new underground chambers required.

Burgeoning Bodio
14 October, 2000

Manufacturers go for more used plant
10 August, 2000
Tight margins for the tunnelling industry mean that good quality used and/or refurbished plant is an attractive proposition. Major manufacturers of new plant are now taking an increased interest in this market – if there is money to be made. Maurice Jones reports on the trend.

High speed segments for Yellow River diversion
01 July, 2000
The Wanjiazhai Yellow River diversion project will provide the Province's main cities of Taiyuan, Datong and Pingshuo with water through free flowing tunnels to specially constructed reservoirs. Italian contractor Impregilo sends this report.

The cutting edge of cost control
11 June, 2000
Although any moving part used in tunnelling can wear out in time, the term "consumables" has been applied to those parts and materials, not forming part of the tunnel fabric, which are used in substantial quantities during construction. "T&T International" technical editor Maurice Jones, reviews the nature of tunnelling consumables and some current topics.

Drillcon Raise stands TBM technology on its head!
11 June, 2000
You are entitled to expect lateral thinking from the company that, in the early '90s, pioneered horizontal raise-boring. So when Drillcon Raise AB of Nora, Sweden was invited to tender for dry drilling 1.75m diameter holes, vertical to within 0.1deg throughout the drilled length of 9m, its solution was bound to be novel!

1999 – the year reviewed
06 June, 2000
Nineteen-ninety-nine was a mixed year for underground construction in the United States. Susan Nelson, Executive Director, American Underground Construction Association, looks back