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="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Supporting structure</td><td class="align_center">Elasticity modulus/GPa</td><td class="align_center">Cross section area/10<sup>−4</sup> m<sup>2</sup></td><td class="align_center">Adhesion/10<sup>5</sup> N·m<sup>−1</sup></td><td class="align_center">Bond stiffness/10<sup>7</sup> N·m<sup>−2</sup></td><td class="align_center">Breaking load/kN</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">Bolt</td><td class="align_center">210</td><td class="align_center">9.43</td><td class="align_center">4.2</td><td class="align_center">2.51</td><td class="align_center">231</td></tr><tr><td class="align_left">Cable</td><td class="align_center">196</td><td class="align_center">9.43</td><td class="align_center">1.8</td><td class="align_center">1.19</td><td class="align_center">580</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Numerical calculation parameters of bolt/cable.</div>

Advances in Civil Engineering

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Table 2: Study on Zonal Cooperative Control Technology of Surrounding Rock of Super Large Section Soft Rock Chamber Group Connected by Deep Vertical Shaft 

Table 2 | Study on Zonal Cooperative Control Technology of Surrounding Rock of Super Large Section Soft Rock Chamber Group Connected by Deep Vertical Shaft 