- Tunnel - Wikipedia
A tunnel is an underground or undersea passageway It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two portals common at each end, though there may be access and ventilation openings at various points along the length
- TUNNEL Definition Meaning - Merriam-Webster
The meaning of TUNNEL is a covered passageway; specifically : a horizontal passageway through or under an obstruction How to use tunnel in a sentence
- How Tunnels Work - HowStuffWorks
In this article, we'll explore what makes tunnels such an attractive solution for railways, roadways, public utilities and telecommunications We'll look at the defining characteristics of tunnels and examine how tunnels are built
- TUNNEL | English meaning - Cambridge Dictionary
TUNNEL definition: 1 a long passage under or through the ground, especially one made by people: 2 the long passage… Learn more
- tunnels and underground excavations - Encyclopedia Britannica
tunnels and underground excavations, horizontal underground passageway produced by excavation or occasionally by nature’s action in dissolving a soluble rock, such as limestone A vertical opening is usually called a shaft
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- What does Tunnel mean? - Definitions. net
A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods
- 22 Types of Tunnels - Uses, Advantages . . . - Engineering Learn
Tunnels are counterfeit submerged burrows that are worked without harming the outer layer of the earth The passages are submerged paths utilized for the most part for transport purposes They might be utilized to move cargo and voyagers, water, and disinfection, individually
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