Research on Arch Model and Numerical Simulation of Critical Water and Sand Inrush in Coal Mine near Unconsolidated Layers

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2020/6644849/figures/6644849.fig.006a.svgz" name="6644849.fig.006a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Hydraulic pressure 0.001 MPa</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2020/6644849/figures/6644849.fig.006b.svgz" name="6644849.fig.006b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Hydraulic pressure 1 MPa</td></tr></table>

<div>Simulation results of critical instability of interlocking arch under different hydraulic pressure.</div>

Geofluids

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Figure 6

Figure 6: Research on Arch Model and Numerical Simulation of Critical Water and Sand Inrush in Coal Mine near Unconsolidated Layers 