Triger process

Triger process
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. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • 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 …   Useful english dictionary

  • 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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