PlatMine pillar strength formula for the UG2 Reef
نویسندگان
چکیده
The Upper Group 2 (UG2) chromitite reef is a shallow-dipping stratiform tabular orebody in the South African Bushveld Complex, which strikes for hundreds of kilometres. Mining extensive, with depths ranging from close-to-surface to 500 m. Pillars are widely used support open stopes and bords. Little work has been done past determine strength pillars on UG2 Reef design was using formulae developed other hard-rock mines. This led oversized consequent sterilization ore. In this paper we describe back-analysis stable failed platinum mines, provides formula pillars. may be cautiously all mines similar geotechnical, geometrical, geomechanical conditions database.
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ژورنال
عنوان ژورنال: Journal of The South African Institute of Mining and Metallurgy
سال: 2021
ISSN: ['2411-9717', '0038-223X']
DOI: https://doi.org/10.17159/2411-9717/1387/2021