A Study of the Anchorage Body Fracture Evolution and the Energy Dissipation Rule: Comparison between Tensioned Rock Bolts and Torqued Rock Bolts

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Coal measures</td><td class="align_center" colspan="2">Intact rock</td><td class="align_center" rowspan="2">RQD (%)</td><td class="align_center" colspan="3">Rock mass</td></tr><tr class="thead"><td class="align_center">Er (GPa)</td><td class="align_center">бr (MPa)</td><td class="align_center">Em (GPa)</td><td class="align_center">бcm (MPa)</td><td class="align_center">бtm (MPa)</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">Coal</td><td class="align_center">2.6</td><td class="align_center">10.8</td><td class="align_center">75</td><td class="align_center">0.79</td><td class="align_center">5.1</td><td class="align_center">0.51</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Intact rock properties and scaled rock mass properties of coal from the Wangzhuang Coal Mine.</div>

Advances in Civil Engineering

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Table 1

Table 1: A Study of the Anchorage Body Fracture Evolution and the Energy Dissipation Rule: Comparison between Tensioned Rock Bolts and Torqued Rock Bolts 

Table 1 | A Study of the Anchorage Body Fracture Evolution and the Energy Dissipation Rule: Comparison between Tensioned Rock Bolts and Torqued Rock Bolts 