Rock-Arch Instability Characteristics of the Sandstone Plate under Different Loading Conditions

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="950870.fig.005a" src="https://static.hindawi.com/articles/amse/volume-2014/950870/figures/950870.fig.005a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Initial crack</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="950870.fig.005b" src="https://static.hindawi.com/articles/amse/volume-2014/950870/figures/950870.fig.005b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Ultimate cracks</td></tr></table></td></tr></table>

<table>AE location of rock plate under concentrated loading.</table>

Advances in Materials Science and Engineering

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Figure 5

Figure 5: Rock-Arch Instability Characteristics of the Sandstone Plate under Different Loading Conditions 