Formation Mechanism and Reduction Technology of Mining-Induced Fissures in Shallow Thick Coal Seam Mining

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/sv/volume-2017/1980817/figures/1980817.fig.0016a.svgz" name="1980817.fig.0016a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Slow advance</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/sv/volume-2017/1980817/figures/1980817.fig.0016b.svgz" name="1980817.fig.0016b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Medium-speed advance</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/sv/volume-2017/1980817/figures/1980817.fig.0016c.svgz" name="1980817.fig.0016c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Rapid advance</td></tr></table>

<div>The influence of mining coal face advancing speed on the morphological development of surface mining-induced fissures.</div>

Shock and Vibration

fig16

Figure 16

Figure 16: Formation Mechanism and Reduction Technology of Mining-Induced Fissures in Shallow Thick Coal Seam Mining 