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="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Whether there are rock bolts</td><td class="align_center">Rock bolt pretension force</td><td class="align_center">Displacement rate</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Scheme I</td><td class="align_center">No</td><td class="align_center">—</td><td class="align_center">0.02 m/s</td></tr><tr><td class="align_left">Scheme II</td><td class="align_center">Yes (torqued rock bolts)</td><td class="align_center">Low (40 kN)</td><td class="align_center">0.02 m/s</td></tr><tr><td class="align_left">Scheme III</td><td class="align_center">Yes (tensile rock bolts)</td><td class="align_center">High (90 kN)</td><td class="align_center">0.02 m/s</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Advances in Civil Engineering

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Table 5

Table 5: A Study of the Anchorage Body Fracture Evolution and the Energy Dissipation Rule: Comparison between Tensioned Rock Bolts and Torqued Rock Bolts 

Table 5 | A Study of the Anchorage Body Fracture Evolution and the Energy Dissipation Rule: Comparison between Tensioned Rock Bolts and Torqued Rock Bolts 