Construction & Infrastructure
Tunnel boring machine
A tunnel boring machine excavates a passage with a powered cutting head. Modern systems also remove spoil and can support or line the tunnel as they advance.
About this artifact
A tunnel boring machine excavates a passage with a powered cutting head. Modern systems also remove spoil and can support or line the tunnel as they advance.
Sources & image credits
Documented image of this machine or its operating principle; see image credits for the original date and subject.
Image: A_déli_pajzs_a_keresztezőkamrában.jpg
Creator: The original uploader was Tambo at Hungarian Wikipedia.
License: CC BY-SA 3.0
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