A Study on the Effects of Loading Axial Pressure Rate on Coal Mechanical Properties and Energy Evolution Law

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/5593173/figures/5593173.fig.005a.svgz" name="5593173.fig.005a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Failure strength and confining pressure</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/5593173/figures/5593173.fig.005b.svgz" name="5593173.fig.005b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Strain</td></tr><tr class="fig-image" id="c"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/5593173/figures/5593173.fig.005c.svgz" name="5593173.fig.005c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Failure strength-confining pressure</td></tr></table>

<div>The relationship among stress, strain, and loading axial pressure rate. UCPLAP: unloading confining pressure and loading axial pressure; CTC: conventional triaxial compression.</div>

Geofluids

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Figure 5

Figure 5: A Study on the Effects of Loading Axial Pressure Rate on Coal Mechanical Properties and Energy Evolution Law 