Study on Zonal Cooperative Control Technology of Surrounding Rock of Super Large Section Soft Rock Chamber Group Connected by Deep Vertical Shaft

<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">Elasticity modulus/GPa</td><td class="align_center">Poisson’s ratio</td><td class="align_center">Cohesion/MPa</td><td class="align_center">Internal friction angle/°</td><td class="align_center">Thickness/mm</td><td class="align_center">Normal stiffness/10<sup>8</sup> N·m<sup>−3</sup></td><td class="align_center">Tangential stiffness/10<sup>8</sup> N·m<sup>−3</sup></td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">26</td><td class="align_center">0.21</td><td class="align_center">3.2</td><td class="align_center">51</td><td class="align_center">100 (floor) 300 (side and roof)</td><td class="align_center">8</td><td class="align_center">8</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Numerical calculation parameters of shotcreting.</div>

Advances in Civil Engineering

tab3

Table 3

Table 3: Study on Zonal Cooperative Control Technology of Surrounding Rock of Super Large Section Soft Rock Chamber Group Connected by Deep Vertical Shaft 

Table 3 | Study on Zonal Cooperative Control Technology of Surrounding Rock of Super Large Section Soft Rock Chamber Group Connected by Deep Vertical Shaft 