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- Tunnel - Wikipedia
[2] A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal The central portions of a rapid transit network are usually in the tunnel Some tunnels are used as sewers or aqueducts to supply water for consumption or for hydroelectric stations
- 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
- Tunnels and underground excavations | History, Methods, Uses, Facts . . .
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
- San Diego Sector Border Patrol uncovers sophisticated cross-border drug . . .
The uncompleted tunnel extended more than 1,000 feet inside the U S and was highly sophisticated In early April, Border Patrol agents assigned to the San Diego Sector Tunnel Team discovered the tunnel as it was actively under construction The Tunnel Team made entry into the tunnel, which ran under a portion of the Otay Mesa Port of Entry
- Tunnel connecting Tijuana to San Diego shut down by Border Patrol - Los . . .
U S Border Patrol agents shut down the construction of a 2,918-foot-long tunnel connecting Tijuana and San Diego with the aid of Department of Homeland Security officials and Mexican authorities
- 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
- Tunnel construction - Wikipedia
Tunnel construction is a subset of underground construction There are three basic types of tunnel construction in common use: Cut-and-cover tunnel, constructed in a shallow trench and then covered over Bored tunnel, constructed in situ, without removing the ground above They are usually of circular or horseshoe cross-section
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