Research on Pressure Relief Method of Close Floor Roadway in Coal Seam Based on Deformation and Failure Characteristics of Surrounding Rock in Deep Roadway

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/5820228/figures/5820228.fig.009a.svgz" name="5820228.fig.009a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Phase 1</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/5820228/figures/5820228.fig.009b.svgz" name="5820228.fig.009b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Phase 3</td></tr><tr class="fig-image" id="c"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/5820228/figures/5820228.fig.009c.svgz" name="5820228.fig.009c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Phase 5</td></tr><tr class="fig-image" id="d"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/5820228/figures/5820228.fig.009d.svgz" name="5820228.fig.009d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Phase 9</td></tr><tr class="fig-image" id="e"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/5820228/figures/5820228.fig.009e.svgz" name="5820228.fig.009e" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(e) </b>Phase 11</td></tr></table>

<div>Fracture development characteristics on the roadway surface in different loading phases.</div>

Geofluids

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Figure 9

Figure 9: Research on Pressure Relief Method of Close Floor Roadway in Coal Seam Based on Deformation and Failure Characteristics of Surrounding Rock in Deep Roadway 

Figure 9 | Research on Pressure Relief Method of Close Floor Roadway in Coal Seam Based on Deformation and Failure Characteristics of Surrounding Rock in Deep Roadway 