Category:Tunnelling
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English: The process of boring tunnels
the construction method for building a tunnel | |||||
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Media in category "Tunnelling"
The following 5 files are in this category, out of 5 total.
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Double-O tube Tunnel.jpg 600 × 400; 146 KB
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Slurry Pipe Jacking Micro Tunneling.jpg 3,072 × 2,048; 2.46 MB
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The British Army on Gibraltar 1941 GM63.jpg 1,772 × 1,955; 984 KB
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Timbering in soft ground (Walker 1888).jpg 4,418 × 2,826; 655 KB
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Tunnel end Onkalo.jpg 5,100 × 3,400; 6.55 MB
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