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Alaskan Way Viaduct - Tunneling

The SR 99 Alaskan Way Viaduct, an elevated concrete structure built in the 1950s and vulnerable to earthquakes, is being replaced with a 1.7-mile tunnel running beneath downtown Seattle.

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ST launches tunnel-boring machine for light rail tunnels ...

Sen. Patty Murray today joined Sound Transit in marking a major light rail construction milestone. A massive tunnel-boring machine (TBM) is about to disappear into the side of Beacon Hill as it digs the first of two almost mile-long light rail tunnels.

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World's biggest tunnel machine Bertha emerges from …

Bertha, the world's largest tunnel-boring machine, ends its journey today. It has spent four years traveling less than two miles to build a new car tunnel underneath Seattle.

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Seattle's tunnel boring machine Bertha reaches end of long ...

Apr 04, 2017 · SEATTLE — With a cloud of dust, Bertha — Seattle's tunnel boring machine — reached the end of her long, troubled journey, a milestone in a multibillion-dollar project to replace an aging highway hugging the city's waterfront. Bertha, the machine digging a 1.75 mile tunnel under Seattle to ...

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Used machines - Herrenknecht AG

Environmentally-friendly method for installing pipelines over long distances. More; ... Used machines from ... Herrenknecht can provide used tunnel boring machines ...

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Seattle tunnel machine reaches end of long, troubled ...

A tunnel-boring machine has broken through a concrete wall beneath Seattle in a troubled multibillion-dollar project to replace a waterfront highway with an underground roadway

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Tunnel Boring Machine - Tunnel Boring Machine 70% Off

Tunnel Boring Machine 70% Off. Free shipping, in stock. Buy now!

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AVN Machine - Herrenknecht AG

Modern tunnel boring machines to create ... This means that the AVN Machine can be used to tunnel different ... + Very long pipe jacking stretches of more ...

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For Sale: Slightly Used Tunnel Boring Machine

For Sale: Slightly Used Tunnel Boring Machine. ... I think a theme song is long overdue, ... Interesting article in the TNT from last July The Tunnel: Seattle's ...

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Ideal For Drilling Structural Steel and Many Metal. Drill Holes Up To 5-1/8" Dia

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

Dec 25, 2013 · Named after one of Seattle's early mayors, the $80 million drill Big Bertha is 326 feet long, ... world's largest tunnel boring machine ...

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Seattle's long-broken tunnel-boring machine set to …

Nov 23, 2015 · Workers lift machine head from Bertha, the world's largest tunnel-boring machine, from access pit for repairs in Seattle Thomson Reuters SEATTLE (Reuters) - The world's largest-diameter tunneling machine could resume drilling under downtown Seattle in late November after repairs are completed, allowing a central part …

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Seattle Tunnel - Curbed Seattle

Seattle Tunnel on Curbed Seattle ... digging the two-mile-long State Route 99 tunnel, tunnel-boring machine ... Seattle. The tunnel boring machine is now ...

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For sale: Eurotunnel Tunnel Boring Machine - Slashdot

For sale: Eurotunnel Tunnel Boring Machine. ... the first to say that as soon as that sale is ended, ... would it cost to make a similar tunnel 3000 miles long, ...

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Seattle Tunnel Boring Machine -- Bertha Rescue

Why Seattle's Huge Tunnel-Boring Machine Is Still Stuck A year after Bertha got stuck, plans to free the big machine have stalled. And there's another problem.

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Tunnel Boring Machines | The Robbins Company

If you are planning to tunnel through rock, ... Tunnel Boring Machines Products. TBMs Main Beam Double Shield Single Shield Crossover EPB Back-Up Systems ...

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Seattle Restarting Bertha, the Broken Tunnel Machine | Fortune

Stuck underground for years, Seattle's Bertha tunnel boring machine will soon tremble to life once more.

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Seattle's Big Tunnel Borer Gets Back to Work ...

Seattle's Big Tunnel Borer Gets Back to Work Bertha, the machine boring the State Route 99 tunnel under Seattle, resumed tunneling Tuesday after being shut down for more than a month due to safety concerns.

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Seattle viaduct demolition: When it will happen and …

With Bertha the tunnel-boring machine's job complete, the Alaskan Way Viaduct replacement tunnel's construction is well underway. This means that the viaduct's days are officially numbered. The Washington State Department of Transportation (WSDOT) is getting close to knocking the structure ...

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How a Tunnel-Boring Machine Drills Underground - YouTube

Jul 13, 2012 · How a Tunnel-Boring Machine Drills Underground NYCEDC. Loading ... 300-foot-long tunnel boring machine will drill a distance of nearly two miles, ...

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Sr99 Tunnel Project - Seattle, Washington - Travel ...

Sr99 Tunnel Project, Seattle, ... the two mile long waterfront tunnel is scheduled to open in late ... The face of Seattle's tunnel boring machine is lifted to the sur.

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

Seattle's tunnel wouldn't be very long—just 1.7 miles of it bored through the earth—but it couldn't ... The biggest tunnel-boring machine ever to get stuck under ...

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