Experimental Study on Structural Form and Excavation Model of Urban Metro Cross Transfer Station with Super Large Cross Section and Shallow Excavation

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Geometric size</td><td class="align_center"><i>E</i> (kPa)</td><td class="align_center"><i>μ</i></td><td class="align_center"><i>γ</i> (kN·m<sup>−3</sup>)</td><td class="align_center"><i>φ</i></td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">Grade VI surrounding rock</td><td class="align_center">128</td><td class="align_center">2.45 × 10<sup>6</sup></td><td class="align_center">0.34</td><td class="align_center">25.09</td><td class="align_center">34.78</td></tr><tr><td class="align_left">Simulating material</td><td class="align_center">3.2</td><td class="align_center">1.52 × 10<sup>5</sup></td><td class="align_center">0.17</td><td class="align_center">19.6</td><td class="align_center">35</td></tr><tr><td class="align_left">Proportion</td><td class="align_center">40</td><td class="align_center">16.12</td><td class="align_center">2.00</td><td class="align_center">1.31</td><td class="align_center">0.99</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Principal stress of key points (kPa).</div>

Advances in Civil Engineering

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Table 5

Table 5: Experimental Study on Structural Form and Excavation Model of Urban Metro Cross Transfer Station with Super Large Cross Section and Shallow Excavation 

Table 5 | Experimental Study on Structural Form and Excavation Model of Urban Metro Cross Transfer Station with Super Large Cross Section and Shallow Excavation 