largest tunnel digging machine

largest tunnel digging machine

Tunnel boring machine - Wikipedia

7/13/2012 · How a Tunnel-Boring Machine Drills Underground NYCEDC. Loading... Unsubscribe from NYCEDC? ... Building the Thames Tunnel - Duration: 7:40. CITB 241,446 views. 7:40.

Bertha (tunnel boring machine) - Wikipedia

On Saturday,the world's largest tunnel boring machine was dedicated in the city of Seattle. “Bertha,” as it’s known, will spend the next 14 months boring a 1.7 mile (2.7 km) tunnel under the ...

How a Tunnel-Boring Machine Drills Underground - YouTube

The World's Largest Tunnel-Boring Machine Must Be Saved ... You're digging along, everything fine, the machine's five-story maw about to chew beneath the skyscrapers of one of the great American ...

Big Bertha -- world's largest tunnel boring machine ...

On April 4, the world's largest tunnel boring machine broke through to the open air after almost four years underground. Called Bertha, the giant digger was tasked with the challenge of building a ...

Gizmag goes inside the world's largest tunnel boring machine

Bertha, the world’s largest tunneling machine, has been stuck under downtown Seattle since it broke in December 2013. ... It will then start digging again. As of now, the tunnel is supposed to ...

The World's Largest Tunnel-Boring Machine Must Be Saved

The World's Largest Tunnel-Boring Machine Must Be Saved. On April 4, the world's largest tunnel boring machine broke through to the open air after almost four years underground. ... Bertha, the world’s largest-diameter tunnel-boring machine. Built in Japan and reassembled in the U.S., Bertha is digging the 1.7-mile tunnel by advancing at an ...

Hard grind: The epic journey of the world's biggest tunnel ...

Digging an Enormous Tunnel Under Downtown Seattle To replace a decaying viaduct under downtown Seattle, the state of Washington ordered the world's largest tunnel-boring machine.

Leave Your Message

About KAMY

KAMY series of Roadheaders offers the best cutting performance in a wide range of rock formations. Equipped with geometrically optimized transverse or longitudinal cutter heads, these flexible machines can be used to excavate subway tunnels, road tunnels, railway tunnels and water tunnels without using explosives.