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. 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. Constructing a tunnel is one of the most complex challenges in the field of civil engineering. Learn about the basics behind tunnels. The meaning of TUNNEL is a covered passageway; specifically : a horizontal passageway through or under an obstruction.
the tunnel 247, How to use tunnel in a sentence. 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 vehicles, or rail traffic. Define tunnel. tunnel synonyms, tunnel pronunciation, tunnel translation, English dictionary definition of tunnel.
the tunnel 247, n. 1. An underground or underwater passage. 2. A passage through or under a barrier such as a mountain. 3.
A tube-shaped structure. v. tun neled ,... A tunnel is an underground structure which is constructed through the surrounding mass of soil or rock.
