Study on the Bearing Mechanism and Stability of Surrounding Rock in Original Roadway Filling and Nonpillar Tunneling

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2023/2545442/figures/2545442.fig.003a.svgz" name="2545442.fig.003a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Mechanical model of roof during periodic weighting</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2023/2545442/figures/2545442.fig.003b.svgz" name="2545442.fig.003b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Schematic diagram of the mechanical model of roof</td></tr></table>

<div>Calculation model of support strength of the filling body during periodic weighting.</div>

Geofluids

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Figure 3

Figure 3: Study on the Bearing Mechanism and Stability of Surrounding Rock in Original Roadway Filling and Nonpillar Tunneling 