Study on the Influence of Cracks on the Mechanical Performance of Tunnel Lining Structure Based on Fracture Mechanics Theory

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Uncracked model</td><td class="align_center">Cracking model</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Maximum settlement of lining arch waist (mm)</td><td class="align_center">10.96</td><td class="align_center">23.12</td></tr><tr><td class="align_left">Maximum vertical stress of lining arch waist (MPa)</td><td class="align_center">17.04</td><td class="align_center">174.4</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Comparison of calculation results of finite element model.</div>

Mathematical Problems in Engineering

tab5

Table 5

Table 5: Study on the Influence of Cracks on the Mechanical Performance of Tunnel Lining Structure Based on Fracture Mechanics Theory 