Research Article
Stability Analysis of Retaining Wall in Backfilled Stope Based on Catastrophe Theory and Numerical Analysis
Figure 10
Shapes of goaf and retaining wall after the second-step mining: (a) retaining wall with a thickness of 3 m collapsed, (b) scanning results of the goaf, and (c) retaining wall with a thickness of 4 m remained fairly stable without collapsing.