Topic: Tunnel Boring Machine
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Answers to Common Questions
What is a Tunnel boring machine?
A tunnel boring machine (TBM) is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They can bore through hard rock, sand, and almost anything in between. Tunnel diameters can range f... Read More »
Source: http://wiki.answers.com/Q/What_is_a_Tunnel_boring_machine
How big is the largest tunnel boring machine ever used?
The world's largest tunnel boring machine (TBM) is the Herrenknecht S-317 (Shanghi) with a shield diameter of 15.43m. see the related links for more info (videos & photos & data) BUT there is some dispute: on the web there is this quote: Th... Read More »
Source: http://wiki.answers.com/Q/How_big_is_the_largest_tunnel_boring_ma...
What is the biggest tunnel boring machine ever made?
The biggest is built by Herrenknecht AG of Schwanau, Germany to dig the 57 km Go... Read More »
Source: http://www.chacha.com/question/what-is-the-biggest-tunnel-boring-...
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Tunnel Boring Machine
More Common Questions
Answers to Other Common Questions
Misalignment of a boring machine spindle results in inaccurate cuts and wasted materials. Prevent the loss of money and materials by properly aligning the spindle. To accurately align the spindle, use a laser sight alignment system. Laser s...
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Source: http://www.ehow.com/how_12009236_align-boring-machine.html
Using a boring head will allow you to get within fractions of an inch while maintaining a nice finish. This can be crucial for certain holes where reamers and drills will simply not do based on certain specifications laid out in the master ...
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Source: http://www.ehow.com/how_7610141_bore-hole-milling-machine.html
There's one in the middle of the channel tunnel = you can have it for free, but you have to collected it :-) To be serious .. TBM's are custom built for the tunnel you wish to bore = thus there is no possibility of 'hire' (unless you want e...
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Source: http://uk.answers.yahoo.com/question/index?qid=20091026024800AARZ...
They run on electricity. There is a very large wheel on the front end that rotates and scratches pieces of rock off the tunnel face. The scratched off rock is transported to the rear of the boring machine then hauled away by one means or th...
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Source: http://answers.yahoo.com/question/index?qid=20100927151725AAJz1fu
most tbms are are open faced the ones there using in bris bane are but you have to remember that the tbm that you on is designed with that pressure sheild in case of a major inrush stopping you from drowning by the way i sent you an email i...
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Source: http://answers.yahoo.com/question/index?qid=20080301205057AAKFv5M
Boring The process of boring is one that's only become possible with modern technology. Traditionally tunnels were dug by hand, or in the cases of larger scale they were blasted with dynamite. This would of course destroy anything that had ...
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Source: http://www.ehow.com/how_5548384_do-road-boring-machines-work.html
