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.
The Best Products for Tough Jobs You won’t be alone when you buy a Robbins TBM. If you are planning to tunnel through rock, you want a TBM from a manufacturer who will support you as your partner throughout the project, anywhere in the world.
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Crossrail will use eight tunnel boring machines (TBMs) to construct the new tunnels under London. These huge machines will work 24 hours a day beneath the st...
Four massive tunnel boring machines will dig the 15km twin tunnels on Sydney's North West Rail Link. The first TBM will be in the ground in October, 2014 at ...
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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.
On Thursday, leaders christened a tunnel-boring machine that will dig a 5-mile path from RFK Stadium to R Street to help complete the Anacostia River Tunnel System.
Tunnel Boring Machines In hard rock nothing bores tunnel faster than a Main Beam TBM. If you want to bore a tunnel through hard rock in the shortest time possible, then the Robbins Main Beam TBM is the right solution.
News has been dribbling out for a couple months now about Elon Musk’s new tunneling venture, the Boring Company. Today, a SpaceX employee posted a photo on Instagram (which was first spotted by Business Insider) of the actual machine that will be boring Musk’s tunnel. A few months ago, Musk told ...
The machine completed its tunneling on April 4, 2017 and was fully dismantled and removed from the tunnel on Aug. 23, 2017. + Bertha's tunnel route
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.