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="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left">Support thickness (cm)</td><td class="align_center">20</td><td class="align_center">30</td><td class="align_center">40</td><td class="align_center">50</td><td class="align_center">60</td><td class="align_center">70</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">Statistical average (kPa)</td><td class="align_center">1.312</td><td class="align_center">1.718</td><td class="align_center">2.585</td><td class="align_center">3.065</td><td class="align_center">3.032</td><td class="align_center">3.959</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Statistical average value of surrounding rock pressure of subexcavation.</div>

Advances in Civil Engineering

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Table 6

Table 6: Influence of Support Parameter and Excavation Methods on Statistical Distribution Characteristics of Surrounding Rock Pressure in Shallow-Buried Metro Tunnel 

Table 6 | Influence of Support Parameter and Excavation Methods on Statistical Distribution Characteristics of Surrounding Rock Pressure in Shallow-Buried Metro Tunnel 