Study on the Intelligent Evaluation System of Tunnel Frost Damage in Cold Regions Based on the Fuzzy Comprehensive Evaluation Model

<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">Negative quantitative index</td><td class="align_center">I</td><td class="align_center">II</td><td class="align_center">III</td><td class="align_center">IV</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Ground temperature of the surrounding rock/°C</td><td class="align_center">25</td><td class="align_center">15</td><td class="align_center">10</td><td class="align_center">5</td></tr><tr><td class="align_left">Buried depth of the tunnel/m</td><td class="align_center">600</td><td class="align_center">500</td><td class="align_center">300</td><td class="align_center">100</td></tr><tr><td class="align_left">Lining strength</td><td class="align_center">0.66</td><td class="align_center">0.5</td><td class="align_center">0.33</td><td class="align_center">0</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Membership function parameters of the negative quantitative index.</div>

Mathematical Problems in Engineering

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Table 3

Table 3: Study on the Intelligent Evaluation System of Tunnel Frost Damage in Cold Regions Based on the Fuzzy Comprehensive Evaluation Model 