All articles by Staff Writer
Staff Writer
TBM Captains visit SRL site
Melbourne primary school children have toured a Suburban Rail Loop (SRL) site in an initiative aimed at inspiring careers in engineering and construction.
DC Water begins lowering Potomac River Tunnel TBM
The cutterhead for the first Potomac River Tunnel Project TBM has been lowered into the launch shaft
TBM commissioned for Italian aqueduct project
The TBM that will bore a tunnel for Italy’s Pescara Aqueduct will be commissioned today.
Riyadh awards metro extension contract
The 8.4km Red Line extension includes 7.1km of tunnelling.
Breakthrough made on Mumbai-Ahmedabad high-speed mountain tunnel
Breakthrough has been achieved on a 1.5km mountain tunnel on India’s Mumbai-Ahmedabad high-speed railway line.
Implenia/Marti JV secures Swiss rail work
An Implenia and Marti joint venture has won five of the six main lots – including construction of the 8.3km Brüttener tunnel – of Switzerland’s MehrSpur Zurich-Winterthur project.
BTS January lecture: the design and construction of large propless openings for HS2 tunnels
The British Tunnelling Society’s January lecture this week will explore the design and construction of large propless openings in segmentally lined tunnels using special segments for HS2.
Canada advances tunnel projects
Across the nation, Canada is driving ahead on a number of underground infrastructure projects that include a range of transport and water tunnels, and more
CRCHI Delivers Another Super-large Diameter TBM
A super-large diameter TBM “Longgang No.2”, featuring the “Pioneer Ox” motif painted on its cutterhead, rolled off the production line at CRCHI. The equipment will be deployed for the Longgang Tunnel Project of the newly-constructed Shenzhen-Shenshan Special Cooperation Zone Railway, marking a new addition to the tunneling supporting the under-construction 350 km/h high-speed rail projects in the Guangdong-Hong Kong-Macao Greater Bay Area of China (GBA).
16,000 Meters: CRCHI TBM Sets New Overseas Record for Longest Single-Heading Excavation with a Double-Shield TBM
On Dec 25, at the Upper Elahera–Hela Canal Water Transfer Tunnel Project in Sri Lanka, a double-shield TBM featuring a combined “segment lining + rock bolting and shotcreting” support system, independently developed by China Railway Construction Heavy Industry Corporation Limited (CRCHI), achieved continuous excavation of more than 16,000 meters without any intermediate inspection shaft. The breakthrough successfully surpassed the 10,000-ring milestone, setting a new overseas record for the longest single-heading excavation using a double-shield TBM.