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Results for "
double
breakthrough
"
Videos
506 views
Gotthard - Tunnel Boring Machine (TBM) Breakthrough at world's longest tunnel under Swiss Alps
By
Ali T. Bashar
1831 days ago
Gotthard base tunnel
Tunnel Boring Machine Breakthrough
TBM Breakthrough
Tunnel Boring Machine (TBM) smashes open world's longest tunnel under Swiss Alps
579 views
Sydney Metro: Tunnelling halfway with breakthrough at Crows Nest
By
Kris Lubcek
1710 days ago
transport
for
NSW
Tunnelling for Australia’s biggest public transport project is about 50 per cent complete after another mega boring machine broke through into the new Crows Nest Station site. Only four weeks after Tunnel Boring Machine (TBM) Wendy arrived, TBM...
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