Experimental Investigation on Hard Rock Breaking with Fiber Laser: Surface Failure Characteristics and Perforating Mechanism

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Labradorite (%)</td><td class="align_center">Plagioclase (%)</td><td class="align_center">Clay (%)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Basalt</td><td class="align_center">63.6</td><td class="align_center">27.9</td><td class="align_center">8.5</td></tr><tr><td class="align_left">Lased</td><td class="align_center">56.8</td><td class="align_center">40.0</td><td class="align_center">3.2</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Compositions of basalt before and after laser perforation.</div>

Advances in Civil Engineering

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Table 4

Table 4: Experimental Investigation on Hard Rock Breaking with Fiber Laser: Surface Failure Characteristics and Perforating Mechanism 