Analysis of Stress and Deformation Characteristics of Deep-Buried Phyllite Tunnel Structure under Different Cross-Section Forms and Initial Support Parameters

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Elastic modulus (MPa)</td><td class="align_center">Density (kN/m<sup>3</sup>)</td><td class="align_center">Cohesion (MPa)</td><td class="align_center">Internal friction angle (°)</td><td class="align_center">Poisson’s ratio</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">Surrounding rock</td><td class="align_center">1.3 × 10<sup>3</sup></td><td class="align_center">27.1</td><td class="align_center">0.27</td><td class="align_center">32</td><td class="align_center">0.4</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Physical and mechanical parameters of the surrounding rock.</div>

Advances in Civil Engineering

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Table 2

Table 2: Analysis of Stress and Deformation Characteristics of Deep-Buried Phyllite Tunnel Structure under Different Cross-Section Forms and Initial Support Parameters 

Table 2 | Analysis of Stress and Deformation Characteristics of Deep-Buried Phyllite Tunnel Structure under Different Cross-Section Forms and Initial Support Parameters 