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Shaft mining or shaft sinking is the action of excavating a mine shaft from the top down, where there is initially no access to the bottom. [1] Shallow shafts , typically sunk for civil engineering projects, differ greatly in execution method from deep shafts, typically sunk for mining projects.
Cart from 16th century, found in Transylvania A dumper minecart used in the Basque Country, currently at the Minery Museum.. A minecart, mine cart, or mine car (or more rarely mine trolley or mine hutch) is a type of rolling stock found on a mine railway, used for transporting ore and materials procured in the process of traditional mining.
A drum hoist (steel wire rope visible) and motor. In underground mining a hoist or winder [1] is used to raise and lower conveyances within the mine shaft.Modern hoists are normally powered using electric motors, historically with direct current drives utilizing Ward Leonard control machines and later solid-state converters (), although modern large hoists use alternating current drives that ...
Cave-ins, poor air quality, wet slippery surfaces, etc. are real dangers when entering a mine, but even the surrounding area can be dangerous.Older mines may have been covered with logs or wooden beams with loose rock and soil over the top. [1]
Mineshaft may refer to: A long vertical tunnel giving access to a mine's workings, see shaft mining; Mineshaft (gay club), a BDSM-oriented gay sex club in New York ...
Workings above this level (known as "above adit") will remain unflooded as long as the adit does not become blocked. All mine workings below both the drainage adit ("below adit") and the water table will flood unless mechanical means are used for drainage. Until the invention of the steam engine this was the main restriction on deep mining.
Shaft No. 2 with the old hoist house, c1906 Quincy Mine No. 2 Hoist House, 2006 Quincy Mine No. 2 Hoist House, 1978. The Quincy Mining Company was first organized in 1846, [4] and incorporated two years later, to mine the then-recently discovered Portage Lake copper formations. [2]
Mine safety is a broad term referring to the practice of controlling and managing a wide range of hazards associated with the life cycle of mining-related activities.Mine safety practice involves the implementation of recognised hazard controls and/or reduction of risks associated with mining activities to legally, socially and morally acceptable levels.
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