Recent advancements in rock cutting and tunnel boring machine (TBM) performance have underscored the importance of optimising cutter design, operational parameters and understanding rock fracture ...

The global Tunnel Boring Machine (TBM) market, valued at US$7.36 billion in 2024, is projected to reach US$9.79 billion by 2030, driven by rapid urba ...

On April 15th, 2021, officials, engineers, and even students gathered to christen “Rachel.” Rachel is a tunnel boring machine beginning her seven miles journey beneath Los Angeles. The Clearwater ...

The Los Angeles Fire Department says 31 workers have been safely removed from an industrial tunnel after part of the structure collapsed. The workers were up to 6 miles from the tunnel’s ...

Mumbai: The assembly of the first (TBM), named ‘Nayak’, has commenced at the Thane site, marking a major milestone in the upcoming Thane-Borivali Twin Tube Tunnel Project. The machine, delivered by ...

One of them is the largest tunnel boring machine ever built for use in India. It has a cutter head diameter of 13.56 metres. By comparison, metro TBMs are usually under 6.7 metres.

The contract’s scope of work includes the single bore tunnel, station entrances and exits, the excavation of underground stations and the procurement of a tunnel boring machine.

The Santa Clara Valley Transportation Authority on Friday severed ties with its tunnel contractor for the San Jose BART extension — a move that transit officials assert won’t impact the ...

Oliver isn’t just the better candidate— he’s the only candidate in this race who actually gives a damn about the people ...