Raise (mining)
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In underground mining, a raise refers to a vertical or inclined shaft excavation that leads from one level, or drift, to another. A raise may also extend to surface. There are four excavation methods for raises: #Conventional or open raise #Long-hole or drop raise #Alimak #Raise boring Raises serve a number of purposes including: #Transportation of ore and waste rock #Ventilation #Creating a free face for mining #Movement of workers via manway ladders
In underground mining, a raise refers to a vertical or inclined shaft excavation that leads from one level, or drift, to another. A raise may also extend to surface. There are four excavation methods for raises: Conventional or open raise Long-hole or drop raise Alimak Raise boring Raises serve a number of purposes including: Transportation of ore and waste rock Ventilation Creating a free face for mining Movement of workers via manway ladders ==References==
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