Research Article
Research on Arch Model and Numerical Simulation of Critical Water and Sand Inrush in Coal Mine near Unconsolidated Layers
Figure 5
Simulation results of critical instability of interlocking arch.
(a) Ratio of crack and sand being 4.8 |
(b) Ratio of crack and sand being 4.9 |
(c) Ratio of crack and sand being 6.0 |