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News Feed

Pieces of Central Subway boring machine arrive in SF


The first two pieces of a massive tunnel boring machine have arrived in San Francisco for the new Central Subway project. The tunnel is going to run from the Caltrain station at 4th and Bryant ...

Santos harnesses tech-heavy tunnel maker


"We have a guidance system on the [tunnel boring] machine which brings the survey in and it runs in via lasers into [the] operator's position," Thiess general manager of tunnelling, Steve Wille, ...

Uphill tunnel breakthrough in Switzerland


Construction of two inclined headrace tunnels for a new pumped storage power plant in Switzerland has just been completed with breakthrough of the tunnel boring machine (TBM) on the final bore. Main ...

Thousands flock to Two Tunnels opening


Thousands of cyclists and walkers flocked to Bath yesterday for the grand opening of the Two Tunnels Greenway. The route, which has been many years in the planning and has taken three years to ...

Giant highway tunnel cutter offloaded on Seattle waterfront


Likely 200% over budget and why could they not use a local tunnel boring machine  contractor like Robbins in Kent WA and keep the money for the work in the state. Not to mention the shipping costs ...

Tunnel boring technology digs deeper


Tunnel boring machines are quite the rave for softer rock tunneling. These five story high machines look like particle accelerators connected to a long steel worm. Tunnel boring machines are able to ...

Make Way for Bertha


Bertha, the world's biggest tunnel boring machine, is expected to dock in Seattle sometime tomorrow. It should be quite a sight.

New Zealand accepts Waterview mega-TBM


“The size of this project and the size of the Tunnel Boring Machine (TBM) are both on a scale the likes of which we have never seen before in New Zealand,” said New Zealand Transport Agency State ...

Crossrail's Tunnel-Boring Machines Pictured Under London's Streets


Five tunnel boring machines (TBMs), each one weighing 1,000 tonnes and 148m long, are currently underneath the capitals streets chewing through the earth at a snail-like 100m a week. Together they ...

Tunnel boring machine in pieces for voyage to Seattle


Bertha, the world record 5-story-tall boring machine, will begin work in Seattle soon. But first, Bertha's 41 pieces – the largest weighing up to 900 tons – are being loaded on a single ship. The ...

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