world 039 s largest tunnel boring machine

  • Bertha, The Giant Tunnel-Boring Machine Stuck Under Seattle ...

    The world's largest tunnel-boring machine, nicknamed Bertha, has been stuck beneath Seattle for over a year amid its efforts to build a pathway for an underground highway to replace one that is currently obstructing the city's waterfront.

  • 10 best world's largest tunnel boring machine images on ...

    Explore Will Hoe's board "world's largest tunnel boring machine" on Pinterest. | See more ideas about Tunnel boring machine, Worlds largest and Seattle.

  • Herrenknecht - Official Site

    Herrenknecht is the world market leader in mechanized tunnelling technology and offers high quality tunnel boring machines for every geology, additional equipment, and services.

  • 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 Bertha's broken cutter head was finally ...

  • World's Largest Tunnel-boring Machine - Image Results

  • Bertha (tunnel boring machine) - Wikipedia

    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.

  • world's largest tunnel-boring machine - Equipment World

    JCB ceases backhoe production at Ga. facility to make room for telehandlers; will build dedicated parts warehouse and distribution center in Miami

  • Inside the world's largest tunnel boring machine ...

    On Saturday, a tunnel boring machine (TBM) so large that it looks like something out of Thunderbirds was dedicated in the city of Seattle."Bertha," as it's known, is the world's largest TBM and will spend the next 14 months boring a 1.7 mile (2.7 km) tunnel under the city as part of a US$3.1 billion project to replace a viaduct damaged ...

  • Barnhart Crane & Rigging

    World's Largest Tunnel Boring Machine Move. One of Barnhart's largest lifts ever took place in Seattle and involved the world's largest tunnel-boring machine.

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

    Dec 24, 2013 · Named after one of Seattle's early mayors, the $80 million drill Big Bertha is 326 feet long, weighs 6,700 tons, and does much more than drill. John Blacksto...

  • Pictured: The world's most powerful tunnel-boring machine ...

    Seattle STILL can't dig itself out of this one: City starts work to rescue world's largest tunneling machine that broke down far beneath the streets

  • World's largest diameter TBM, Hong Kong | LinkedIn

    April 24, 2015 The world's largest tunnel-boring machine (TBM) of 17.6 meters in diameter was unveiled at the factory acceptance test ceremony in

  • Mega TBMs - TunnelTalk

    The Mixshield is marginally larger than what is now relegated to being only the second-largest machine in the world, ... pushes the diameter of mega-TBMs ever ...

  • World's largest tunnel-boring machine finally breaks through

    SEATTLE — The world's largest tunnel-boring machine broke through a concrete wall beneath Seattle on Tuesday to reach the end of its long, troubled...

  • Gizmag goes inside the world's largest tunnel boring machine

    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 city to replace a viaduct damaged in a 2001 earthquake.

  • 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.

  • Seattle tunnel, among world's biggest, takes step toward ...

    Apr 03, 2017 · Bertha, one of the world's largest tunnel boring machines, emerged north of downtown Seattle on Tuesday.

  • Seattle's Big Tunneling Machine Is Back on Track

    Now the Seattle tunnel boring machine is finally back on track. ... Five stories tall and the biggest drill of her kind, Bertha overheated in December 2013, ...

  • Tunnel boring machine - Wikipedia

    The world's largest hard rock TBM, known as Martina, ... Micro tunnel boring machine is quite similar to general Tunnelling shield but on a smaller scale.

  • world's largest tunnel boring machine - Roadheaders

    world's largest tunnel boring machine. We are the manufacturer of coal mining machine,roadheader,coal loader,tunnel mucking loader,backfilling machine,concerte pumping machine and so on. world's largest tunnel boring machine manufacturer, supplier.

  • Here's what is blocking Bertha, the world's largest tunneling ...

    Bertha, the world's biggest tunnel-boring machine currently underneath Seattle, has been stuck for nearly one month. Now, crews are close to figuring out what exactly is stopping her.

  • 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 under the heart of Seattle.

  • The World's Largest Tunnel-Boring Machine | Popular Science

    After a 2001 earthquake severely damaged the double-decker section of Seattle's Route 99 highway, state and city officials decided to move the main thoroughfare underground. In July, they unleashed Bertha, the world's largest-diameter tunnel-boring machine. Built in Japan and reassembled in the ...

  • 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).

  • Big, Bigger, BIGGEST! 3 MASSIVE MACHINES that move! (World's ...

    Apr 26, 2015 · Big, Bigger, BIGGEST! 3 MASSIVE MACHINES that move (and work!) (World's biggest / largest ever built!) NASA CRAWLER-TRANSPORTERS: The NASA crawler-transporte...

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