# Raise (mining)

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In [underground mining](/source/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:

1. Conventional or open raise
1. Long-hole or drop raise
1. [Alimak](/source/Shaft_construction#Raising_by_mechanical_climbers:_Alimak_raise_climber)
1. [Raise boring](/source/Raise_borer)[1]

Raises serve a number of purposes including:

1. Transportation of [ore](/source/Ore) and waste rock
1. Ventilation
1. Creating a [free face](/source/Free_face) for mining
1. Movement of workers via [manway](/source/Manway) ladders[2]

## References

1. Puhakka, Tulla (1997). *Underground Drilling and Loading Handbook*. Finland: Tamrock Corporation. p. 180.

1. Puhakka, Tulla (1997). *Underground Drilling and Loading Handbook*. Finland: Tamrock Corporation. pp. 181–185.

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Adapted from the Wikipedia article [Raise (mining)](https://en.wikipedia.org/wiki/Raise_(mining)) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Raise_(mining)?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.