Analysis of Plastic Zone and Pressure Variance Features of Surrounding Rock of High-Altitude Macker Tunnel: A Case Study in Jiangluling Macker Tunnel in Qinghai

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Pressure of the surrounding rock</td><td class="align_center" colspan="2">Empirical formula method</td><td class="align_center">Theoretical formula method</td><td class="align_center" rowspan="2">Field measurement</td></tr><tr class="thead"><td class="align_center">Code for design of highway (railway) tunnel</td><td class="align_center">Specification for design of hydraulic tunnel</td><td class="align_center">Caquot plastic zone broken-rock pressure formula</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Vertical pressure (MPa)</td><td class="align_center">0.31</td><td class="align_center">0.10</td><td class="align_center">0.83</td><td class="align_center">0.703</td></tr><tr><td class="align_left">Horizontal pressure (MPa)</td><td class="align_center">0.13</td><td class="align_center">0.03</td><td class="align_center">0.83</td><td class="align_center">0.625</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Results of comprehensive comparative analysis.</div>

Advances in Civil Engineering

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Table 3

Table 3: Analysis of Plastic Zone and Pressure Variance Features of Surrounding Rock of High-Altitude Macker Tunnel: A Case Study in Jiangluling Macker Tunnel in Qinghai 

Table 3 | Analysis of Plastic Zone and Pressure Variance Features of Surrounding Rock of High-Altitude Macker Tunnel: A Case Study in Jiangluling Macker Tunnel in Qinghai 