triger process

triger process
\\trēˈzhā-\ noun
Usage: usually capitalized T
Etymology: after M. Triger, 19th century French engineer
: a method of sinking through water-bearing ground in which a shaft is lined with tubbing and provided with an air lock so that work proceeds under air pressure

Useful english dictionary. 2012.

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  • Triger process — Tri ger proc ess [After M. Triger, French engineer.] (Engin. & Mining) A method of sinking through water bearing ground, in which the shaft is lined with tubbing and provided with an air lock, work being proceeded with under air pressure.… …   The Collaborative International Dictionary of English

  • Jacques Triger — (1801 1867) was a French mining engineer who invented the Triger process for digging through water logged ground. The work is done inside a chamber (known as a caisson) open at the bottom and in which compressed air is pumped to keep water out.… …   Wikipedia

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