Numerical Modeling on Dynamic Characteristics of Jointed Rock Masses Subjected to Repetitive Impact Loading

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Mechanical parameters</td><td class="align_center"><i>σ</i><sub><i>f</i></sub> (MPa)</td><td class="align_center"><i>E</i> (GPa)</td><td class="align_center"><i>υ</i></td><td class="align_center"><i>σ</i><sub><i>t</i></sub> (MPa)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Test results</td><td class="align_center">216</td><td class="align_center">69</td><td class="align_center">0.26</td><td class="align_center">9.3</td></tr><tr><td class="align_left">Numerical results</td><td class="align_center">205</td><td class="align_center">69.3</td><td class="align_center">0.245</td><td class="align_center">9.56</td></tr><tr><td class="align_left">Relative error (%)</td><td class="align_center">5.1</td><td class="align_center">0.43</td><td class="align_center">5.7</td><td class="align_center">2.8</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Comparison between experimental test results and the FJCM simulation.</div>

Shock and Vibration

tab5

Table 5

Table 5: Numerical Modeling on Dynamic Characteristics of Jointed Rock Masses Subjected to Repetitive Impact Loading 