Search Results: 'ITA'

Terrorism - the new challenge for old tools
01 October, 2004
Specialist tunnelling lawyer, Professor of Engineering and Australian delegate to the ITA Security Group, Prof. Arnold Dix reviews the possible impact of terrorism on underground infrastructure and urges a rational approach to dealing with this modern day low risk/high impact danger

A helping hand
01 October, 2004

Geotechnical risks in rock mass characterisation - Part 1
01 September, 2004
Irmina Pöschl, consultant geologist, and Johannes Kleberger, managing director, both of iC consulenten ZT GmbH in Salzburg, Austria, discuss rock mass classifications and their limitations in atypical or hazardous ground. For meeting the demands of today's contractual environment they propose a flexible concept based on a variety of available methods

Too many chefs at ITA
01 June, 2004

Celebrations at the ITA World Congress
01 May, 2004
This year's International Tunnelling Association (ITA) World Tunnelling Congress "Underground space for sustainable urban development" is due to be held on 22-27 May, at the Suntec Singapore International Convention & Exhibition Centre. Marking the 30th anniversary of the ITA, the Congress promises to be an event to remember

The 'Integrated Method' of renewal
01 April, 2004
Many existing transport tunnels in New York currently require repair. Conventional methods of rehabilitation, by yearly painting of structural steel and sealing of concrete cracks and joints, are expensive and not always successful. Dr M Ryzhevskiy, of STV, and E Teperman, of Parsons Brinckerhoff, discuss a cost-effective method of stopping or significantly delaying tunnel lining degradation