Experimental Study on Creep Behavior and Crack Evolution of Stratified Structural Sandstone under Segmental Constant Load

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2021/5762201/figures/5762201.fig.004a.svgz" name="5762201.fig.004a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Evolution law of crack initiation stress ratio</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2021/5762201/figures/5762201.fig.004b.svgz" name="5762201.fig.004b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Evolution law of crack damage stress ratio</td></tr></table>

<div>Evolution law of constant load experiment parameters.</div>

Geofluids

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Figure 4

Figure 4: Experimental Study on Creep Behavior and Crack Evolution of Stratified Structural Sandstone under Segmental Constant Load 