Research on Ground Settlement Regularity of Soft Rock Tunnel under Ultrasmall Distance

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="12"><hr/></td></tr><tr><td class="align_left">Excavation footage (m)</td><td class="align_center">2</td><td class="align_center">4</td><td class="align_center">6</td><td class="align_center">8</td><td class="align_center">10</td><td class="align_center">12</td><td class="align_center">14</td><td class="align_center">16</td><td class="align_center">18</td><td class="align_center">20</td><td class="align_center">22</td></tr><tr><td class="align_left">Settlement (m)</td><td class="align_center">4.47</td><td class="align_center">1.43</td><td class="align_center">2.11</td><td class="align_center">0.88</td><td class="align_center">0.16</td><td class="align_center">1.58</td><td class="align_center">−0.32</td><td class="align_center">0.10</td><td class="align_center">0.20</td><td class="align_center">0.07</td><td class="align_center">−0.04</td></tr><tr class="table-tr"><td colspan="12"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Increase the settlement measured on site with the excavation footage.</div>

Advances in Civil Engineering

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Table 4

Table 4: Research on Ground Settlement Regularity of Soft Rock Tunnel under Ultrasmall Distance 