Vertical Load and Settlement at the Foot of Steel Rib with the Support of Feet-Lock Pipe in Soft Ground Tunnel

<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">Soil grade</td><td class="align_center">Tunnel section</td><td class="align_center">Foot settlement (mm)</td><td class="align_center">Average settlement (mm)</td><td class="align_center">Vertical load by back analysis (kN)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left" rowspan="2">VI</td><td class="align_center">XK89 + 588</td><td class="align_center">18.0∼21.0</td><td class="align_center" rowspan="2">18.0</td><td class="align_center" rowspan="2">45.98</td></tr><tr><td class="align_center">XK89 + 605</td><td class="align_center">16.0∼17.0</td></tr><tr><td class="align_left" colspan="5"><hr/></td></tr><tr><td class="align_left" rowspan="2">V</td><td class="align_center">SK89 + 355.6</td><td class="align_center">13.2∼13.4</td><td class="align_center" rowspan="2">13.9</td><td class="align_center" rowspan="2">53.68</td></tr><tr><td class="align_center">SK89 + 397.6</td><td class="align_center">14.0∼14.8</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Field measurements of tunnel sections with the different soil grades.</div>

Advances in Civil Engineering

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Table 3

Table 3: Vertical Load and Settlement at the Foot of Steel Rib with the Support of Feet-Lock Pipe in Soft Ground Tunnel 