Adit

For the ADIT, see Advanced Diploma in International Taxation.
For the Indonesian animated series, see Adit Sopo Jarwo.
Gated entrance of an abandoned adit near Medford, Oregon, United States
Look up adit in Wiktionary, the free dictionary.

An adit (from Latin aditus, entrance)[1] or stulm[2] is a horizontal or nearly horizontal passage to an underground mine.[3] Miners can use adits for access, drainage,[4] ventilation, and extracting minerals at the lowest convenient level.[1] Adits are also used to explore for mineral veins.[1] Although most strongly associated with mining, the term adit is sometimes also used in the context of underground excavation for non-mining purposes; for example, to refer to smaller underground passageways excavated for underground metro systems, to provide pedestrian access to stations (pedestrian adits), and for access required during construction (construction adits).[5]

  1. ^ a b c Ripley, George; Dana, Charles A., eds. (1879). "Adit" . The American Cyclopædia.
  2. ^ Thrush, Paul W., ed. (1968). "stulm". A Dictionary of Mining, Mineral, and Related Terms. United States Bureau of Mines Special Publications. U.S. Department of the Interior: Bureau of Mines. p. 1094. Retrieved 22 June 2023. stulm. An approximately horizontal passageway into a mine; an adit.
  3. ^ Thrush, Paul W., ed. (1968). "adit". A Dictionary of Mining, Mineral, and Related Terms. United States Bureau of Mines Special Publications. U.S. Department of the Interior: Bureau of Mines. p. 12. Retrieved 22 June 2023. adit. [...] A horizontal or nearly horizontal passage driven from the surface for the working or unwatering of a mine.
  4. ^ R. W. Raymond, 1881, Glossary of Mining and Metallurgical Terms, American Institute of Mining Engineers, p.3.
  5. ^ "Environmental Risk and Impact Assessment: Proposed Changes to the Approved Project Land" (PDF). Victoria's Big Build. 24 April 2018. p. 7. Retrieved 2024-02-15.