Research on the Failure and Fracture Evolution of Mylonite with a Prefabricated Circular Opening by Discrete Element Method

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Lithology</td><td class="align_center"><i>λ</i></td><td class="align_center">1</td><td class="align_center">0.75</td><td class="align_center">0.33</td><td class="align_center">0.25</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left" rowspan="2">Mylonite</td><td class="align_center"><i>σ</i><sub>cmax</sub>/MPa</td><td class="align_center">20</td><td class="align_center">30</td><td class="align_center">79.5</td><td class="align_center">110</td></tr><tr><td class="align_center"><i>σ</i><sub>tmax</sub>/MPa</td><td class="align_center">0</td><td class="align_center">0</td><td class="align_center">0</td><td class="align_center">10</td></tr><tr><td class="align_left" rowspan="2">Sandstone</td><td class="align_center"><i>σ</i><sub>cmax</sub>/MPa</td><td class="align_center">7.5</td><td class="align_center">22.5</td><td class="align_center">60.075</td><td class="align_center">82.5</td></tr><tr><td class="align_center"><i>σ</i><sub>tmax</sub>/MPa</td><td class="align_center">0</td><td class="align_center">0</td><td class="align_center">0</td><td class="align_center">7.5</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Statistics of the maximum compressive stress and the maximum tensile stress with different <i>λ</i>.</div>

Advances in Civil Engineering

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Table 2

Table 2: Research on the Failure and Fracture Evolution of Mylonite with a Prefabricated Circular Opening by Discrete Element Method 