Deformation Failure and Support Test of Surrounding Rock in Deep Arched Roadway with Straight Wall

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Section shape</td><td class="align_center">Coefficient</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Ellipse</td><td class="align_center">1.05</td></tr><tr><td class="align_left">Arch</td><td class="align_center">1.10</td></tr><tr><td class="align_left">Square</td><td class="align_center">1.15</td></tr><tr><td class="align_left">Positive trapezoid</td><td class="align_center">1.20</td></tr><tr><td class="align_left">Rectangle</td><td class="align_center">1.20</td></tr><tr><td class="align_left">Unilateral ladder</td><td class="align_center">1.25</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Correction coefficient of section shape of underground roadway.</div>

Advances in Civil Engineering

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Table 3

Table 3: Deformation Failure and Support Test of Surrounding Rock in Deep Arched Roadway with Straight Wall 