TY - CONF
T1 - Parametric Analysis of Rib Pillar Stability in a Longitudinal Sublevel Open Stoping Operation in an Underground Copper Mine in Southern Africa
AU - Kaklis, Kostas
AU - Agioutantis, Zach
AU - Masialeti, Munyindei
AU - Yendaw, Jerome
AU - Betsi, Thierry Bineli
PY - 2021/11/10
Y1 - 2021/11/10
N2 - The pillar stability factor (PSF) is calculated in three different mining stages for a sublevel open stoping mining project located in northern Botswana. Several three-dimensional finite element models were developed by varying the stope span. Pillar strength was estimated using the Lunder and Pakalnis equation and pillar stress was obtained from the numerical models. As mining progresses, both the first and second mining stages meet the rib pillar stability factor requirement for safe extraction. Geometrical improvements are suggested in the mining layout for the third mining stage to achieve the required PSF, which is based on international practices.
AB - The pillar stability factor (PSF) is calculated in three different mining stages for a sublevel open stoping mining project located in northern Botswana. Several three-dimensional finite element models were developed by varying the stope span. Pillar strength was estimated using the Lunder and Pakalnis equation and pillar stress was obtained from the numerical models. As mining progresses, both the first and second mining stages meet the rib pillar stability factor requirement for safe extraction. Geometrical improvements are suggested in the mining layout for the third mining stage to achieve the required PSF, which is based on international practices.
UR - https://www.mendeley.com/catalogue/183dc118-b57b-3914-a4fb-86bf93c1045d/
UR - https://www.mendeley.com/catalogue/183dc118-b57b-3914-a4fb-86bf93c1045d/
U2 - 10.3390/materproc2021005011
DO - 10.3390/materproc2021005011
M3 - Paper
ER -