Experimental Study on Load Bearing Characteristics of Steel Fiber Reinforced Concrete Lining in the Soft Surrounding Rock Tunnel

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Material</td><td class="align_center"><i>E</i> (MPa)</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>c</i> (kPa)</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">Original surrounding rock</td><td class="align_center">1210</td><td class="align_center">0.41</td><td class="align_center">18</td><td class="align_center">120</td><td class="align_center">23</td></tr><tr><td class="align_left">Similar materials of surrounding rock</td><td class="align_center">58.4</td><td class="align_center">0.43</td><td class="align_center">18.7</td><td class="align_center">5.7</td><td class="align_center">25</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Physical and mechanical parameters of surrounding rock.</div>

Advances in Civil Engineering

tab2

Table 2

Table 2: Experimental Study on Load Bearing Characteristics of Steel Fiber Reinforced Concrete Lining in the Soft Surrounding Rock Tunnel 