Research and Application of Prefilled Concrete Wall to Reduce the Size of Stopping Mining Coal Pillar

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/8526755/figures/8526755.fig.0019a.svgz" name="8526755.fig.0019a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Deformation of surrounding rock</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/8526755/figures/8526755.fig.0019b.svgz" name="8526755.fig.0019b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Deformation velocity of surrounding rock</td></tr></table>

<div>The surrounding rock deformation and deformation speed of the auxiliary main haulage roadway.</div>

Geofluids

fig19

Figure 19

Figure 19: Research and Application of Prefilled Concrete Wall to Reduce the Size of Stopping Mining Coal Pillar 