Tunnel
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 …
Tunnels and underground excavations | History, Methods, Uses, …
tunnels and underground excavations, horizontal underground passageway produced by excavation or occasionally by nature’s action in dissolving a soluble rock, such as …
TUNNEL Definition & Meaning
The meaning of TUNNEL is a covered passageway; specifically : a horizontal passageway through or under an obstruction. How to use tunnel in a sentence.
TUNNEL | definition in the Cambridge English Dictionary
TUNNEL meaning: 1. a long passage under or through the ground, especially one made by people: 2. the long passage…. Learn more.
tunnel noun
Definition of tunnel noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
TUNNEL Definition & Meaning | Dictionary.com
TUNNEL definition: an underground passage. See examples of tunnel used in a sentence.
TUNNEL definition in American English | Collins English Dictionary
A tunnel is a long passage which has been made under the ground, usually through a hill or under the sea. Boston drivers love the tunnel.
Tales from the unfriendly confines of Highmark Stadium's singular tunnel
The tunnel is 20 feet wide, nearly 400 feet long and descends at a 7 percent grade — the same slope as Interstate 70 through harrowing Vail Pass in the Rocky Mountains, …
Tunnel construction
Tunnels are dug in types of materials varying from soft clay to hard rock.
Tunnel
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 …
Tunnel
In general, tunnels are at least twice as long as they are wide and are completely enclosed on all sides, save for the openings at each end. A tunnel may be used by pedestrians, cyclists, motor …
Broadway Tunnel (San Francisco)
The Broadway Tunnel (officially the Robert C. Levy Tunnel) is a roadway tunnel in San Francisco, California. The tunnel opened in 1952, and serves as a high-capacity conduit for traffic …
Tunnels and underground excavations
Tunnels are generally grouped in four broad categories, depending on the material through which they pass: soft ground, consisting of soil and very weak rock; hard rock; soft …
Tunnel
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 …
Tunnels and underground excavations
Tunnels are generally grouped in four broad categories, depending on the material through which they pass: soft ground, consisting of soil and very weak rock; hard rock; soft …