Big Bertha Tunnel Machine Update

  • tbm bertha suffers main bearing seal failure

    tbm bertha suffers main bearing seal failure 11 feb 2014. peter kenyon and shani wallis, stp discovered damage to the seal system that protects the tunneling machine's main bearing." keep checking back with tunneltalk for further updates on the situation as they occur.

  • big bertha tunnel machine update

    big bertha tunnel machine update. we produce parts and components for the shearer and boring machine manufacturers, and provide technical services, and provide shearer picks, import shearer picks, import boring machine picks, german import picks, rotary pick cut teeth, pittec picks and other coal mining equipment machinery.

  • repairing the world's biggest tunnel machine

    repairing the largest tunnel boring machine ever built poses a immense challenge to the ingenuity and resources of engineering experts in seattle. big bertha is the largest tunnel boring machine ever built in terms of diameter, measuring 17.5 metres, or almost six storeys in height, from top to

  • stopped seattle tunnel boring machine

    products. seattle tunnel boring machine update ; tunnel boring machine chunnellatest news on tunnel boring machine in seattle ; seattle tunnel boring machine stuck in windows free quote inslee orders tunnel dig halted as soil sinks above bertha

  • tbm bertha suffers main bearing seal failure

    tbm bertha has damage that will delay for "months" delivery of the 2.6km double deck highway tunnel in seattle, while repairs are carried out. stp discovered damage to the seal system that protects the tunneling machine's main bearing." keep checking back with tunneltalk for further updates on the situation as they occur.

  • 50 surreal landscapes on earth (photos tunnel

    these stunning landscapes are so surreal they look like they could be from alien worlds.

  • what blocked seattle tunnel: a lowly pipe

    · the mystery underground object that had been blocking the giant big bertha tunnel boring machine under seattle turns out to have been something pretty boring: an 8 inch diameter steel pipe.

  • seattle's big dig still isn't diggingthe american spectator

    after just 1,025 feet into its 9,270 foot journey, bertha, the 7,000 ton miracle of human ingenuity that is the deep bore tunneling machine created specifically for

  • seattle tunnel update

    bertha (tunnel boring machine) bertha was a 57 foot diameter (17.4 m) tunnel boring machine built specifically for the washington state department of transportation's (wsdot) alaskan way viaduct replacement tunnel project in seattle.

  • seattle's unbelievable transportation megaproject

    in july 2013, they bring in bertha, the largest tunnel boring machine in the world, meanwhile, they have to keep pumping saltwater out lest the big hole fill up.

  • tunnel boring machine stopped by mystery object the

    · when it got stuck, big bertha was only about 1,000 feet into a two mile long boring journey under seattle for the tunnel that will replace the city's waterfront viaduct – a necessity after damage from a 2001 earthquake.

  • bertha has tunneled 292 feet since seattle's viaduct closed

    8 p.m. update: a total of 20 rings have now been installed in the tunnel as bertha moves underneath the viaduct. that amounts to a distance of 131 feet out of the 385 feet the machine has to

  • tunnel boring machine bertha

    bertha was designed and manufactured by 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.

  • musk debuts the "boring company", watch tesla's evs

    possibly you are correct, considering the best boring machine in the world, big bertha took two years to bore seattle's highway 99 replacement. vote up

  • seattle tunnel boring machine stuck

    follow bertha thank you for following bertha. the sr 99 tunneling machine, nicknamed bertha, has completed her work. for the latest tunnel progress, visit our new tracker page. seattle tunnel boring machine update; big bertha tunnel boring machine seattle; underground tunneling equipment tunnel boring machine tbm used tunnel

  • tunnel boring machine resource learn about, share

    a tunnel boring machine (tbm), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata.they may also be used for microtunneling.they can bore through anything from hard rock to sand.tunnel diameters can range from one metre (3.3 ft) (done with

  • why can't they back bertha out from the tunnel? quora

    update cancel. answer wiki. 2 answers. david whitney, lives in seattle, wa. why don't they just disassemble "big bertha", the giant boring vehicle stuck in the tunnel they're trying to build in seattle? what was the mysterious object blocking the bertha tunneling machine in seattle 2013? how has the channel tunnel paid off?

  • why can't they back bertha out from the tunnel? quora

    update cancel. answer wiki. 2 answers. david whitney, lives in seattle, wa. why don't they just disassemble "big bertha", the giant boring vehicle stuck in the tunnel they're trying to build in seattle? what was the mysterious object blocking the bertha tunneling machine in seattle 2013? how has the channel tunnel paid off?

  • big dig tunnel projector

    read articles and editiorials, view photos of the collapse, and find traffic updates on . big bertha big bertha tunnel boring machine updates; how to dig a tunnel in your backyard; dart big block chevy tunnel ram intake manifolds; ripper cutters for tunnel boring machine;

  • bertha seattle tunnel

    seattle's big bertha tunneling machine is finally back on track five stories tall and the biggest drill of her kind, bertha overheated in december 2013, only about a ninth of the way into the project to bore a tunnel under downtown seattle.