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 …

A hillside tunnel entrance is called a portal; tunnels may also be started from the bottom of a vertical shaft or from the end of a horizontal tunnel driven principally for construction access …

Discover something new, or tunnel back home to enjoy your favourite websites and apps while travelling or living abroad.

Tunnel Basics A tunnel is a horizontal passageway located underground. While erosion and other forces of nature can form tunnels, in this article we'll talk about man made tunnels -- tunnels …

Tunnel construction makes transportation simple and it is likewise a treatment measure against any geohazard in sensitive regions. Tunneling is a complicated process, particularly when it is …

The meaning of TUNNEL is a covered passageway; specifically : a horizontal passageway through or under an obstruction. How to use tunnel in a sentence.

A tunnel is an underground passage. 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 …

TUNNEL definition: 1. a long passage under or through the ground, especially one made by people: 2. the long passage…. Learn more.

Перевод Tunnel - туннель, тоннель, штольня, подземный ход, прокладывать тоннель. Транскрипция - |ˈtʌnl|. Примеры - railway tunnel, to tunnel a hill, lights tunnel the darkness, …

All about the next World Tunnel Congress: WTC2026 in Montreal, Canada and WTC2027 in Antwerp, Belgium