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

<table class="table-group" id="tab3"><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> (MPa)</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">Failure rate (MPa/s)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">GZ-6</td><td class="align_center">260</td><td class="align_center">30</td><td class="align_center">3</td><td class="align_center">0.1</td></tr><tr><td class="align_left">GZ-7</td><td class="align_center">260</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-8</td><td class="align_center">260</td><td class="align_center">30</td><td class="align_center">3</td><td class="align_center">1.0</td></tr><tr><td class="align_left">GZ-9</td><td class="align_center">260</td><td class="align_center">30</td><td class="align_center">3</td><td class="align_center">2.0</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 rates.</div>

Advances in Civil Engineering

tab3

Table 3

Table 3: Experimental Study of Influence of Support Failures on Rockbursts under True-Triaxial Condition 