Tunnels in Civil Engineering /
A tunnel is an underground passageway, completely enclosed except for openings for egress, commonly at each end. A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. Some tunnels are aqueducts to supply water for consumption or for hydroelectric stations or are sewer...
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| Format: | software, multimedia |
| Language: | eng |
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Delhi, India : White Word Publications,
2012
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