Influence of Support Parameter and Excavation Methods on Statistical Distribution Characteristics of Surrounding Rock Pressure in Shallow-Buried Metro Tunnel

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Density (kg/m<sup>3</sup>)</td><td class="align_center">Modulus of elasticity <i>E</i>(GPa)</td><td class="align_center">Poisson’s ratio <i>ν</i></td><td class="align_center">Tensile yield strength (MPa)</td><td class="align_center">Residual yield strength (MPa)</td><td class="align_center">Compressive yield strength (MPa)</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">2500</td><td class="align_center">23</td><td class="align_center">0.2</td><td class="align_center">2</td><td class="align_center">1</td><td class="align_center">25</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 shotcrete.</div>

Advances in Civil Engineering

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Table 4

Table 4: Influence of Support Parameter and Excavation Methods on Statistical Distribution Characteristics of Surrounding Rock Pressure in Shallow-Buried Metro Tunnel 

Table 4 | Influence of Support Parameter and Excavation Methods on Statistical Distribution Characteristics of Surrounding Rock Pressure in Shallow-Buried Metro Tunnel 