An Improved Numerical Simulation Approach for the Failure of Rock Bolts Subjected to Tensile Load in Deep Roadway

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr class="thead"><td class="align_left">Grouting body</td><td class="align_center">Circumference (mm)</td><td class="align_center">Tangential cohesion (N·m<sup>-1</sup>)</td><td class="align_center">Tangential internal friction angle (°)</td><td class="align_center">Tangential stiffness (N·m<sup>-2</sup>)</td><td class="align_center">Normal cohesion (N·m<sup>-1</sup>)</td><td class="align_center">Normal internal friction angle (°)</td><td class="align_center">Normal stiffness (N·m<sup>-2</sup>)</td></tr><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr><td class="align_left">Free section</td><td class="align_center">91.1</td><td class="align_center">0</td><td class="align_center">0</td><td class="align_center">0</td><td class="align_center"><span style="width: 46.5453ptpx;"><svg height="11.9413pt" id="M89" style="vertical-align:-0.3499002pt" version="1.1" 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<div>Geometrical and mechanical parameters of the grouting body.</div>

Geofluids

tab4

Table 4

Table 4: An Improved Numerical Simulation Approach for the Failure of Rock Bolts Subjected to Tensile Load in Deep Roadway 