Experimental Study of Influence of Support Failures on Rockbursts under True-Triaxial Condition

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Specimen number</td><td class="align_center"><i>σ</i><sub>1/</sub><i>σ</i><sub>s</sub> (%)</td><td class="align_center"><i>σ</i><sub>2</sub> (MPa)</td><td class="align_center"><i>σ</i><sub>3</sub> (MPa)</td><td class="align_center">Unloading rate (MPa/s)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">GZ-4</td><td class="align_center">50</td><td class="align_center">30</td><td class="align_center">3</td><td class="align_center">0.5</td></tr><tr><td class="align_left">GZ-5</td><td class="align_center">77</td><td class="align_center">30</td><td class="align_center">3</td><td class="align_center">0.5</td></tr><tr><td class="align_left">GZ-3</td><td class="align_center">90</td><td class="align_center">30</td><td class="align_center">3</td><td class="align_center">0.5</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Testing plan of one-single face true-triaxial unloading test with different support failure timings.</div>

Advances in Civil Engineering

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Table 2

Table 2: Experimental Study of Influence of Support Failures on Rockbursts under True-Triaxial Condition 