Analysis of Crustal Stress and Its Influence on the Stability of the Deep Tunnel in the Huanaote Mining Area

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Rock mass density <i>ρ</i> (kg·m<sup>−3</sup>)</td><td class="align_center">Elastic model <i>E</i> (GPa)</td><td class="align_center">Friction angle <i>φ</i> (°)</td><td class="align_center">Cohesion <i>c</i> (MPa)</td><td class="align_center">Passion’s ratio <i>μ</i></td><td class="align_center">Tensile strength <i>σ</i><sub><i>t</i></sub> (MPa)</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">2800.0</td><td class="align_center">18.0</td><td class="align_center">36.0</td><td class="align_center">0.7</td><td class="align_center">0.14</td><td class="align_center">0.5</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Geomechanical parameters of rock mass.</div>

Advances in Civil Engineering

tab5

Table 5

Table 5: Analysis of Crustal Stress and Its Influence on the Stability of the Deep Tunnel in the Huanaote Mining Area 