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="tab5"><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">2.733</td><td class="align_center">3.908</td><td class="align_center">5.248</td><td class="align_center">6.237</td><td class="align_center">7.805</td><td class="align_center">9.167</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 in full-face excavation.</div>

Advances in Civil Engineering

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Table 5

Table 5: Influence of Support Parameter and Excavation Methods on Statistical Distribution Characteristics of Surrounding Rock Pressure in Shallow-Buried Metro Tunnel 

Table 5 | Influence of Support Parameter and Excavation Methods on Statistical Distribution Characteristics of Surrounding Rock Pressure in Shallow-Buried Metro Tunnel 