Support Measures to Prevent the Deformation and Failure of a Carbonaceous Mudstone Tunnel

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left">Parameter type</td><td class="align_center" colspan="6">Working condition</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">Length (m)</td><td class="align_center">2.5</td><td class="align_center">2.8</td><td class="align_center">3.0</td><td class="align_center">3.5</td><td class="align_center">4.0</td><td class="align_center">4.5</td></tr><tr><td class="align_left">Angle (°)</td><td class="align_center">10</td><td class="align_center">15</td><td class="align_center">20</td><td class="align_center">30</td><td class="align_center">35</td><td class="align_center">45</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Working conditions of the locking foot anchor.</div>

Advances in Civil Engineering

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Table 3

Table 3: Support Measures to Prevent the Deformation and Failure of a Carbonaceous Mudstone Tunnel 