Deformation Characteristics and Influence Factors of a Shallow Tunnel Excavated in Soft Clay with High Plasticity

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Daily precipitation (mm)</td><td class="align_center">Influence degree</td><td class="align_center">Suggestions for construction</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">≤4</td><td class="align_center">Small impact</td><td class="align_center">Can maintain the previous state</td></tr><tr><td class="align_left">&gt;4</td><td class="align_center">Significant impact and 1-2 weeks of lag time</td><td class="align_center">Shorten the excavation footage, reinforce the support structure, and strengthen deformation monitoring in the next 2 weeks</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Suggestion for construction of shallowly buried soft surrounding rock tunnel during atmospheric rainfall.</div>

Advances in Civil Engineering

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Table 2

Table 2: Deformation Characteristics and Influence Factors of a Shallow Tunnel Excavated in Soft Clay with High Plasticity 