Experimental Study on Initial Damage Point of Deep Granite under Step Cyclic Loading Method

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Testing no.</td><td class="align_center">Confining pressure (MPa)</td><td class="align_center">Peak strength <i>σ</i><sub><i>P</i></sub> (MPa)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">G-10-1</td><td class="align_center">10</td><td class="align_center">328</td></tr><tr><td class="align_left">G-20-1</td><td class="align_center">20</td><td class="align_center">402</td></tr><tr><td class="align_left">G-30-1</td><td class="align_center">30</td><td class="align_center">461</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Testing results of triaxial compression tests.</div>

Advances in Civil Engineering

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Table 2

Table 2: Experimental Study on Initial Damage Point of Deep Granite under Step Cyclic Loading Method 