Numerical Modelling Of A Monitored Site In An Underground Coal Mine In The Bowen Basin (20bead43-67f8-4fda-8d73-d3f230de1fe6)

The aim of the paper was to model numerically some aspects of the extraction of coal pillars by split and fendering. A two-dimensional elasto-plastic plane strain model with strain softening and interface modelling was used. The model was able to simulate the improvement of conditions experienced in lifting from the fender, when the roof adjacent to the fender has caved. In contrast, when a stook was left, providing support to a span of uncaved roof, the model predicted the fender would suffer considerably more deformation and strain.