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adit |
Also found in: Dictionary/thesaurus, Acronyms, Wikipedia, Hutchinson | 0.04 sec. |
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adit (ăd`ĭt), in mining, underground passage excavated nearly horizontally, with one end open to the earth's surface, usually used to service a mine. The adit end is the furthermost end from the surface, i.e., the location where miners work. The adit collar is the area where an adit opens to the surface and must be reinforced against any surface weakness. |
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? Mentioned in | ? References in periodicals archive | |
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Assessment found that the first 600 feet
of the adit was in good condition and would require little
rehabilitation work. The work involved re-opening the
Libby Adit and initiating water treatability analyses. Final approval was received for a minor revision to the Hard Rock
Operating Permit to resume exploration and drilling activities at the
Libby Adit following review by the Montana State Department of
Environmental Quality ("DEQ"). |
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adit
