Search Results: 'American Underground Construction Association'

Repair, refurbish or replace?
12 December, 2000
Many tunnels built in the 19th century are still in service, but changes of use, loadings and the gradual deterioration of the structures by modern pollutants has meant that these tunnels require on-going maintenance or complete refurbishment to extend their usefulness. Gareth Mainwaring, principal engineer with Mott MacDonald's underground works and geotechnical team explains

North American Tunneling 2000
15 October, 2000

Determination to overcome difficulties
01 August, 2000
No stranger to meeting difficulties the tunnelling industry was presented with plenty during the past year.

Tunnelling the way to a Boston clean-up
01 July, 2000
Since its formation in 1985, the Massachusetts Water Resources Authority has become one of the world's largest tunnelling clients. Michael McBride, MWRA's deputy director of capital construction, talks about his approach to a massive tunnelling programme.

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.

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