Study on the Damage Model of Coal Rock Caused by Hydraulic Pressure and Electrical Impulse in Borehole

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2021/6627242/figures/6627242.fig.004a.svgz" name="6627242.fig.004a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Relationship between peak pressure and voltage at 3 MP water pressure</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2021/6627242/figures/6627242.fig.004b.svgz" name="6627242.fig.004b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Relationship between peak pressure and hydrostatic pressure at 11kV voltage</td></tr></table>

<div>Peak pressure relationship of water shock.</div>

Geofluids

fig4

Figure 4

Figure 4: Study on the Damage Model of Coal Rock Caused by Hydraulic Pressure and Electrical Impulse in Borehole 