The Brilliant Vigilance of Seattle's Huge New SR-99 Tunnel

How do you keep a tunnel safe? Hundreds of cameras, 17 jet fans, and a sprinkler system that can out-hose Splash Mountain.

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The World’s Largest Tunnel Boring Machine - Image Results

More The World’s Largest Tunnel Boring Machine images

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tunnelling contract news for the world's tunnel

tunnelbuilder.com is the leading marketing resource for the world's tunnelling industry providing the latest project news on the world's tunnels

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Watch Bertha, the world’s largest tunnel boring machine

From the dark depths beneath Seattle, Bertha the SR 99 tunnel machine headed out of the muck and into daylight on Tuesday, completing a final push in a years-long effort to create space for a new highway beneath the city.

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

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 tunnel large enough to carry four lanes of motor traffic u

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360° Inside The World’s Largest Tunnel Boring Machine

After four years of digging, “Bertha,” the world's largest tunnel boring machine, has bored out a new underground highway in Seattle. Subscribe to Vocativ: h...

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

The World's Largest Tunnel-Boring Machine Must Be Saved. Bertha has stalled deep beneath Seattle, leaving the city's planned waterfront renaissance hanging in the balance.

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The World's Largest Tunnel Boring Machine | Explore the

- The World's Largest Tunnel Boring Machine | Explore the structure and operation principles - Here is video discovery technology for tunneling, we can under...

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Sand Grinds World's Largest Tunneling Machine To A Halt

Contractors working for the state of Washington are planning a high-stakes operation to rescue Bertha — the world's largest tunneling machine. Bertha is supposed to be boring a 2-mile highway tunnel under downtown Seattle, but it got stuck in December. Be

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Alaskan Way Viaduct - Home

Today, Kiewit Infrastructure West Co. was named the apparent-best-value contractor for the project that will demolish the viaduct, decommission the Battery Street Tunnel and reconnect city surface streets just north of the new SR 99 tunnel.

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Ford FE Engine Power Secrets - Hot Rod Engine Tech

Ford FE engine fans who haven' t read Jay Brown's book The Great FE Intake Comparo have missed out on the all time best Ford FE intake manifold mass dyno test wherein Jay tests every FE intake manifold ever made.

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Mega TBMs - TunnelTalk

DISCUSSION FORUM Tracking the world's mega-TBMs . ... The table below is a list of the world’s largest TBMs ordered and ... 1 Mitsubishi EPBM Ex-Bund Tunnel machine:

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The world’s longest undersea rail tunnel between

The world’s longest undersea rail tunnel between Finland and Estonia will be opened for traffic by 2040 it will provide reliable and rapid transportation between the two capital cities, offering a vital connection between Scandinavia and Central Europe

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Hyperloop promises a 30-minute trip from Chicago to

Apr 19, 2018 · Hyperloop technology could cut the trip from Chicago to Cleveland to 30 minutes, but there are many challenges to overcome.

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JM Eagle™: World's Largest Plastic and PVC Pipe

With greater strength, capacity, and geographic reach than ever before, JM Eagle's resources provide an unmatched capability for new products, new materials, new applications, and new processes.

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The World's Largest Tunnel Boring Machine | Explore

Aug 14, 2016 · - The World's Largest Tunnel Boring Machine | Explore the structure and operation principles - Here is video discovery technology for tunneling, we can under...

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Big Bertha, world's largest tunnel-boring machine, arrives in

The “Big” in Bertha’s name isn’t there for the catchiness. It’s there because it’s apt. With a 57-foot diameter and a length of a football field, Big Bertha is the world’s largest tunnel-boring machine.

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National Geographic Magazine

National Geographic stories take you on a journey that’s always enlightening, often surprising, and unfailingly fascinating.

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Alaskan Way Viaduct - Follow Bertha

Follow Bertha Thank you for following Bertha. The SR 99 tunneling machine, nicknamed Bertha, has completed her work. For the latest tunnel progress, visit …

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Tunnel - basf.com

History is being made, and BASF plays a small but significant part in it. Seattle’s infamous two-mile-long tunnel being built underneath its downtown area to replace the city’s State Route 99 Alaska Way Viaduct is one step closer to reality. While it’s be

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Kwik way boring machine - Home - Practical Machinist

Practical Machinist - Largest Manufacturing Technology Forum on the Web

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The Refugee Jail Deep in the Heart of Texas - Narratively

The mouth of the tunnel is wide and dark, swallowing the light and all that breathes. Rubble is scattered along the train tracks, bordered by retaining walls covered in numerous layers of graffiti.

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The World's Largest Tunneling Machine Is (Finally) Getting

Bertha, the world’s largest tunneling machine, has been stuck under downtown Seattle since it broke in December 2013. Engineers have had to concoct a massive and expensive rescue plan—essentially a whole construction project in itself. And yesterday, the

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Alaskan Way Viaduct - Tunneling

... s downtown waterfront. The tunneling machine known as Bertha began tunneling beneath Seattle in July 2013 (photo at right: the machine's ... s tunnel route + ...

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Energy and the Human Journey: Where We Have Been;

Energy and the Human Journey: Where We Have Been; Where We Can Go. By Wade Frazier . Version 1.2, published May 2015. Version 1.0 published September 2014.

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Bertha (tunnel boring machine)

Bertha was designed and manufactured by Hitachi Zosen Sakai Works of Osaka, Japan, and is the world's largest earth pressure balance tunnel boring machine, at a cutterhead diameter of 57.5 feet (17.5 m) across.

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The World’s Largest Tunnel Boring Machine - Video Results

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CBBT About Us - CBBT Chesapeake Bay Bridge Tunnel

Latest News CBBT Announces Winning Name for the Parallel Thimble Shoal Tunnel Project's Tunnel Boring Machine CAPE CHARLES, VA – The Chesapeake Bay Bridge-Tunnel (“CBBT”) and its partners on the Parallel Thimble Shoal Tunnel Project are excited to announc

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World Highways - World's largest tunnel boring machine

Russian operator company NCC (Nevskaya Concession Company) has placed an order with German manufacturer Herrenknecht for the world's largest tunnel boring machine (TBM).

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Fifteen Billion Pound Railway - meet the stars - Series 1

Alex Mitchell – Site Engineer, Connaught Tunnel. Fresh out of university, Alex, landed her dream job on Crossrail’s Connaught Tunnel. The Northumberland born Site Engineer graduated from Leeds University in 2011 before joining the team led by Linda Miller

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