Experiment Study on the Mechanical Behavior and Acoustic Emission Response of Thick and Hard Sandstone Roof in Xinjiang Mining Area

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Specimen no.</td><td class="align_center">Fitting relationship</td><td class="align_center"><i>R</i><sup>2</sup></td><td class="align_center">Fractal dimension</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">S1</td><td class="align_center"><i>y</i> = 1.98<i>x</i> + 4.36</td><td class="align_center">0.9973</td><td class="align_center">1.98</td></tr><tr><td class="align_left">S2</td><td class="align_center"><i>y</i> = 1.64<i>x</i> + 3.94</td><td class="align_center">0.9961</td><td class="align_center">1.64</td></tr><tr><td class="align_left">S3</td><td class="align_center"><i>y</i> = 1.53<i>x</i> + 3.82</td><td class="align_center">0.9962</td><td class="align_center">1.53</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Summary of the value of the fitting parameters.</div>

Advances in Civil Engineering

tab2

Table 2

Table 2: Experiment Study on the Mechanical Behavior and Acoustic Emission Response of Thick and Hard Sandstone Roof in Xinjiang Mining Area 