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="tab3"><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="3">Young’s modulus (GPa)</td><td class="align_center" colspan="3">Compressive strength (MPa)</td></tr><tr class="thead"><td class="align_center">Target</td><td class="align_center">Calibrated</td><td class="align_center">Error (%)</td><td class="align_center">Target</td><td class="align_center">Calibrated</td><td class="align_center">Error (%)</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">Coal</td><td class="align_center">0.79</td><td class="align_center">0.73</td><td class="align_center">7</td><td class="align_center">5.1</td><td class="align_center">5.1</td><td class="align_center">0</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Calibrated microproperties in the UDEC Trigon model to represent the coal.</div>

Advances in Civil Engineering

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Table 3

Table 3: A Study of the Anchorage Body Fracture Evolution and the Energy Dissipation Rule: Comparison between Tensioned Rock Bolts and Torqued Rock Bolts 

Table 3 | A Study of the Anchorage Body Fracture Evolution and the Energy Dissipation Rule: Comparison between Tensioned Rock Bolts and Torqued Rock Bolts 