Super Pit Y Ramp
The Fimiston Mine operation, commonly referred to as the Super
Pit, is the largest open cut gold mine in Australia and is expected to
be over 1.35km long and to a depth of over 500m. After a rockfall event in the South East Corner of the Chaffers Cutback, mining
operations ceased with immediate effect to allow for a thorough risk assessment to be completed and to discuss engineered solutions to allow mining to continue beneath the high wall.
The remediation concept selected consisted of a high tensile drape
system reinforced with vertical support cables, which would allow
the rocks to fall, but in a controlled manner, guiding them to the toe of the slope to minimise bounce height and potential kinetic energy.