20 interesting boring machines

Russian oligarch, Roman Abramovich, donated money for a giant tunneling machine to build a tunnel between Russia and Sarah Palin’s house when he was governor of the adjacent region to Alaska.

The Wikipedia entry for Tunneling Machines and the entry for Civil Engineers in the UK Yellow Pages have something in common, they both read: “see boring”. Doubly ironic, since boring is one of the most interesting projects for civil engineers, and the machines used to do the job are spectacular.

The set here includes a variety of shield tunnel boring machines, TBMs, including those for celebrated projects such as Yucca mountain or the Channel Tunnel. Perhaps the most ironic of all is the Air Force TBM, a machine for digging deep underground, owned by the people who defend the skies.

 
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When Russian Oligarch Roman Abramovich, was governor of the region of Russia that borders Alaska, he proposed building a tunnel linking the US and Russia, apparently. The actual machine pictured here was used to build a road tunnel in Madrid.
We are not sure of the source of this amazing machine - if you know, let us know in the comments.
Click on the link to see the entire array of machines used.
This has to be one of the most surreal object in the history of machines. A subterranean digging device, developed for the branch of the military responsible for guarding the skies.
Shown here, with dainty balloons is the monstrous machine breaking through, for a Metro in Novosibirsk, Russia