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.0015a.svgz" name="1980817.fig.0015a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Normal mining</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/sv/volume-2017/1980817/figures/1980817.fig.0015b.svgz" name="1980817.fig.0015b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Backfill mining</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/sv/volume-2017/1980817/figures/1980817.fig.0015c.svgz" name="1980817.fig.0015c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Surface subsidence value</td></tr></table>

<div>Control effect of backfill mining on morphological development of surface mining-induced fissures.</div>

Shock and Vibration

fig15

Figure 15

Figure 15: Formation Mechanism and Reduction Technology of Mining-Induced Fissures in Shallow Thick Coal Seam Mining 