| 词条 | Box cut |
| 释义 |
A box cut (box pit) is a small open cut built to supply a secure and safe entrance as access to a slope to an underground mine. Generally the box cut is sunk until sufficiently unweathered rock is found to permit the development of the decline. [1] The portal is generally made safe with rock bolts, wire mesh, and shotcrete, which prevents accidental rock falls from closing access to the decline.[2] See also
References1. ^{{cite web|url=http://www.wisegeek.com/what-is-a-box-cut.htm|title=What Is a Box Cut? (with picture)|website=wiseGEEK|accessdate=30 March 2019}} {{DEFAULTSORT:Box Cut}}2. ^{{cite web|url=https://www.greatmining.com/box-cut.html|title=Box Cut Mining Techniques, Underground Mining, Mining Companies, Mining Equipments|website=www.greatmining.com|accessdate=30 March 2019}} 1 : Underground mining |
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