Discard criteria for mine winder ropes.

Abstract

The objectives of the investigation described in this report (GAP502) were the same as those of the previous SIMRAC projects, i.e. to verify, and possibly refine, the discard criteria of SABS0293. For this investigation special emphasis had to be placed on non-spin ropes, because the discard criteria for non-spin ropes were not yet well defined in SABS0293, and the possible use of non-spin ropes in future deep shaft operations required the situation to be addressed. The majority of (drum) winder ropes are discarded because of broken wires. The discard criteria for broken wires were therefore the focus of this investigation.