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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]
In traditional terminology a mine engineer was a senior person responsible for all boilers and machinery and for supervision of the enginewrights. [2] In Scotland the word "engineer" referred to a surveyor. Engineman. An engineman drove a haulage engine; a winding engineman or winder drove the winding engine. Eye or pit-eye
Adits were used as entrances to the mine, and sources of drainage and ventilation. [8] Stoping was a technique the Romans used to dig out of all the ore and leave behind an open space. Once the ore had been dug out trip hammers powered by water were used to crush it, [9] and mercury was used to separate gold from surrounding materials. [10]
Retreat mining is a method in which the pillars or coal ribs used to hold up the mine roof are extracted; allowing the mine roof to collapse as the mining works back towards the entrance. This is one of the most dangerous forms of mining, owing to imperfect predictability of when the roof will collapse and possibly crush or trap workers in the ...
The depth measurements in this list represent the difference in elevation from the entrance of the mine to the deepest excavated point. The definition of mine for this list is an artificially made excavation for the purpose of extracting resources, that can potentially be accessed by humans.
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Now the Mine Shaft sign is back above the entrance to the end zone sections 14 and 15, and 10 minutes before UTEP's 7 p.m. kickoff against Southern Utah on Sept. 7, the team will make the walk ...
It was linked by one or more tunnels to at least one other mine entrance situated on land close to the high water mark. The pit was a significant part of a mining complex developed by Sir George Bruce of Carnock and later his son, George Bruce II of Carnock, and grandsons, Edward Bruce 1st Earl of Kincardine and Alexander Bruce 2nd Earl of ...