World Tunnelling and Trenchless World September 2014

Page 1

Australasia

Investigating the expense of regional tunnels

Drill & blast

Ear to the ground on Rio’s Metro expansion

Roadheaders

Finding success in North America

ISSN 1756-4107 CovI_WT1409.indd 1

September 2014

www.world-tunnelling.com 22/08/2014 09:26


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