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

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Component</td><td class="align_center">Original support measures</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">System anchor</td><td class="align_center">Φ25 hollow grouting anchor</td></tr><tr><td class="align_left">Locking foot anchor</td><td class="align_center">Φ22 mm roll anchor</td></tr><tr><td class="align_left">Longitudinal connection</td><td class="align_center">Rebar channel steel</td></tr><tr><td class="align_left">Advanced support</td><td class="align_center">Single-layer small pipe</td></tr><tr><td class="align_left">Steel arch</td><td class="align_center">I20a model steel arch</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Advances in Civil Engineering

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Table 1

Table 1: Support Measures to Prevent the Deformation and Failure of a Carbonaceous Mudstone Tunnel 