namir2009
Due to the road tunnel, is the tunnel construction need consolidation grouting or only contact grouting, when the rocks are withstand for ten years.
Tunnel
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replied to: namir2009
blockfrei
Replied to: Due to the road tunnel, is the tunnel construction need consolidation...
You can learn about tunnel construction here:
http://science.howstuffworks.com/tunnel4.htm
http://science.howstuffworks.com/tunnel4.htm