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Tunnel boring machine - Wikipedia

Tunnel Boring Machines Products. TBMs Main Beam Double Shield Single Shield Crossover EPB Back-Up Systems The Best Products for Tough Jobs You won’t be alone when you buy a Robbins TBM. ... Let us help you select the right machine from our proven designs. But the machine is only the beginning.

Meet Crossrail's giant tunnelling machines - YouTube

The Channel Tunnel. Machine Type EPBM and Double Shield TBM Number Of Machines Five Diameters 2 x 8.80 m (29 ft), 2 x 8.36 m (27 ft), 5.6 m (18 ft), 5 m (16 ft) Tunnel Type ... Transmanche-Link (TML) chose five Robbins TBMs to participate in boring the crossings. TBMs were deployed at both the U.K. and France Terminals. Geology.

Tunnel Boring Machines | The Robbins Company

The 42.5 ft tunnel boring machine used in the Port of Miami Tunnel Project (Port of Miami Tunnel) cost more than $45 Million USD. The 57.5 ft TBM used in the Seattle SR99 Project cost $80 Million USD (one of the largest TBM's in use).

How a Tunnel-Boring Machine Drills Underground - YouTube

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.

The Channel Tunnel | The Robbins Company

For sale: Eurotunnel Tunnel Boring Machine 444 Posted by michael on Monday April 05, 2004 @12:02AM from the dig-your-way-home dept. BabyDave writes " BBC News reports that Eurotunnel are selling one of the 580-tonne Tunnel Boring Machines used to dig the Channel Tunnel on eBay, with proceeds going to charity.

How much does a tunnel boring machine cost? - Quora

Answers.com ® Categories Technology Engineering Architecture Bridges and Tunnels What happened to the boring machines used to build ... The world's largest tunnel boring machine (TBM) is the ...