opencut


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opencut

[′ō·p·ən¦kət]
(civil engineering)
An open trench, such as across a hill.
(mining engineering)
To drive headings out, or to commence working in the coal after sinking the shafts.
To commence longwall working.
To increase the size of a shaft when it intersects a drift.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
At the same time a few opencuts and at least two more shafts existed as well, and one of the shafts, the Valencia, penetrated a large outcropping ore mass to a depth of about 7 meters.
The opencut was cleared of debris and untouched in-place vein material was exposed.
This includes Macmahon exiting its non-core activities in Southeast Asia and reducing exposure to low-margin opencut mining contracts.
During the seven years that the Kintore Opencut was worked, the list of species from Australia's famous Broken Hill deposit and the knowledge of the Broken Hill orebody were greatly expanded.
Burton has about 12 years of opencut reserves but mine life could be doubled if the underground resource were to be developed (MM, December 1998, pp.288-293).
Western Mining Corporation (WMC) commenced a small opencut on the deposit in 1990.
Fimiston reports: "The inferred opencut resources in this province are in the billions of tonnes of vanadium ore.