Failure Prediction of Two Types of Rocks Based on Acoustic Emission Characteristics

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Forecast periods</td><td class="align_center" colspan="3">AER</td><td class="align_center" rowspan="2">Prediction results</td></tr><tr class="thead"><td class="align_center"><i>p</i></td><td class="align_center"><i>q</i></td><td class="align_center"><i>F</i></td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">180–201</td><td class="align_center">−4.059<i>e</i> + 01</td><td class="align_center">1.903<i>e</i> + 02</td><td class="align_center">4.428<i>e</i> + 05</td><td class="align_center">Rock burst does not occur</td></tr><tr><td class="align_left">201–251</td><td class="align_center">1.357<i>e</i> + 02</td><td class="align_center">1.395<i>e</i> + 02</td><td class="align_center">1.948<i>e</i> + 07</td><td class="align_center">Rock burst does not occur</td></tr><tr><td class="align_left">251–265</td><td class="align_center">3.831<i>e</i> + 01</td><td class="align_center">1.394<i>e</i> + 02</td><td class="align_center">−7.465<i>e</i> + 04</td><td class="align_center">Rock burst occurred</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Rock burst prediction of cylindrical red sandstone.</div>

Advances in Civil Engineering

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Table 4

Table 4: Failure Prediction of Two Types of Rocks Based on Acoustic Emission Characteristics 