Study on the Prediction of the Height of Two Zones in the Overlying Strata under a Strong Shock

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2021/4237061/figures/4237061.fig.004a.svgz" name="4237061.fig.004a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Drilling panoramic fissure peep imaging</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2021/4237061/figures/4237061.fig.004b.svgz" name="4237061.fig.004b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Statistical characteristics of different depth cracks</td></tr></table>

<div>The imaging and statistical characteristics of the overburden cracks in the 1# borehole after the end of mining the 2301 working face.</div>

Geofluids

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Figure 4

Figure 4: Study on the Prediction of the Height of Two Zones in the Overlying Strata under a Strong Shock 