Influence of Arch Foot Defect of Primary Support on Mechanical Behaviors of an Arch Frame in Underground Tunnels

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/9593566/figures/9593566.fig.006a.svgz" name="9593566.fig.006a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Comparison of arch foot steel rib stress data</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/9593566/figures/9593566.fig.006b.svgz" name="9593566.fig.006b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Comparison of average stress of arch foot steel rib</td></tr></table>

<div>Comparison of data after stress stability of arch foot reinforcement in two monitoring sections (Unit: MPa).</div>

Geofluids

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Figure 6

Figure 6: Influence of Arch Foot Defect of Primary Support on Mechanical Behaviors of an Arch Frame in Underground Tunnels 