stull stoping


Also found in: Wikipedia.

stull stoping

[′stəl ‚stōp·iŋ]
(mining engineering)
Stull timbers placed between the foot and hanging walls, which constitute the only artificial support provided during the excavation of a stope.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.