#tunnelboringmachine

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Tunnel Rats, Commission

Global Market for Tunnel Boring Machines is anticipated to exhibit a 5.6% CAGR during the review period. The equipment used for excavating tunnels for railways, roads, and pipelines is known as tunnel boring machines.  

Seattle's new SR 99 Tunnel and the tunnel boring machine that excavated it. Share and follow us! @engineeringandarchitecture . . . #tunnelboringmachine #tunnel #machinery #tbm #construction #building #builder #structure #mine #engenheiracivil #civil #ingenieriacivil #civilengineering #architecture #tunel #seattle #seattlewashington #japan #Technology #structuralengineering #structuralworks #engineeringworks #geotechnical #geotechnics #geology #Soilmechanics #excavator #excavation #underground #mining (at Seattle, Washingtion) https://www.instagram.com/p/CC6EvChFJeW/?igshid=ux3euebb07ba

How a tunneling machine works. SR99 Tunnel Project. The SR 99 tunneling machine (Bertha) was designed specifically for the ground conditions beneath Seattle. The short video above shows how the machine dug the tunnel. The slurry pressure system is designed to work with the variety of different soil types found in Seattle. Safety initiatives include injecting excavated soil with chemicals and using slurry pressure to prevent ground collapse. The new design allows cutter disks to be inspected and replaced from within the cutter head. This eliminates supplementary construction processes and allows the work to be completed safely at atmospheric pressure. Above-ground safety is of paramount importance because the machine will tunnel directly beneath a city. As such, the tunneling machine features a range of safety features. The tunneling machine has been split into sections weighing as close as possible to 900 tons, the maximum allowed under local weight regulations, in order to minimize the number of sections and speed up the assembly process in Seattle. Share and follow us! @engineeringandarchitecture . . . #tunnelboringmachine #tunnel #ingenieriacivil #civilengineering #geology #Soilmechanics #excavator #excavation #underground #mining #machinery #machine #construction #architecture #tunel #seattle #seattlewashington #japan #Technology #structuralengineering #structuralworks #engineeringworks #geotechnical #geotechnics #building #builder #structure #mine #engenheiracivil #civil (at Seattle, Washington) https://www.instagram.com/p/CC3wjmml-SK/?igshid=wuwis7gdilrh

Bertha, the world's largest tunnel boring machine. Share and follow us! @engineeringandarchitecture . . . #tunnelboringmachine #tunnel #machinery #machine #construction #building #builder #structure #mine #engenheiracivil #civil #ingenieriacivil #civilengineering #architecture #tunel #seattle #seattlewashington #japan #Technology #structuralengineering #structuralworks #engineeringworks #geotechnical #geotechnics #geology #Soilmechanics #excavator #excavation #underground #mining https://www.instagram.com/p/CC3HAy5FsId/?igshid=lu26nl9ld45m

Bertha. Tunnel boring machine. Bertha was a 57.5-foot-diameter (17.5 m) tunnel boring machine built specifically for the Washington State Department of Transportation's (WSDOT) Alaskan Way Viaduct replacement tunnel project in Seattle, Washington, United States. It was made by Hitachi Zosen Sakai Works in Osaka, Japan, and the machine's assembly was completed in Seattle in June 2013. The machine completed its tunneling on April 4, 2017 and was fully dismantled and removed from the tunnel on Aug. 23, 2017. Share and follow us! @engineeringandarchitecture . . . #tunnelboringmachine #tunnel #machinery #machine #construction #building #builder #structure #structuralengineering #structuralworks #engineeringworks #geotechnical #geotechnics #geology #Soilmechanics #excavator #excavation #underground #mining #mine #engenheiracivil #civil #ingenieriacivil #civilengineering #architecture #tunel #seattle #seattlewashington #japan #Technology (at Seattle, Washington) https://www.instagram.com/p/CC1EHV3ll-4/?igshid=5l1pmfxiywqw