Park Kwang-ho
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A tunnel is relatively long and narrow; the length is often much greater than twice the diameter, although similar shorter excavations can be constructed, such as cross passages between tunnels. A tunnel made by an animal is commonly referred to as a burrow and may or may not have multiple portals.
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. Tunnels have many uses: for mining ores, for transportation —including road vehicles, trains, subways, and canals ...
Learn the meaning of tunnel as a noun and a verb, with examples of usage and related words. Find out how to pronounce tunnel and how to say it in different languages.
Learn about different techniques and applications of tunneling in geotechnical engineering. Explore topics such as cut-and-cover, jacked box, bored method, subsea tunneling and more.
In the early 2000s, Singapore embarked on a new method to lay underground utilities. Known as the Common Services Tunnel (CST), this tunnel system conveys telecommunication cables, power lines and potable water to buildings in the Marina Bay financial district.
Dec 19, 2017 · The S$2.4-billion project is one of the deepest underground cable tunnel systems in the world, and was a result of a decade of planning and five years of boring works under major public roads.
Learn the meaning, history, and usage of the word tunnel as a noun and a verb. Find synonyms, examples, phrases, and related words for tunnel.
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