Box Cut

A box cut is a small open cut created to provide a secure and safe portal as access to a decline to an underground mine. Generally the box cut is sunk until sufficiently unweathered rock is found to permit the development of the decline. The portal is generally made safe with rock bolts, wire mesh, and shotcrete, which prevents accidental rock falls from closing access to the decline.

Famous quotes containing the words box and/or cut:

    Such as boxed
    Their feelings properly, complete to tags
    A box for dark men and a box for Other
    Would often find the contents had been scrambled.
    Gwendolyn Brooks (b. 1917)

    In the history of the United States, there is no continuity at all. You can cut through it anywhere and nothing on this side of the cut has anything to do with anything on the other side.
    Henry Brooks Adams (1838–1918)