Prediction of Bench Blasting Vibration on Slope and Safety Threshold of Blasting Vibration Velocity to Undercrossing Tunnel

<table class="table-group" id="tab9"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">No.</td><td class="align_center" colspan="3">PPV of numerical simulation (cm/s)</td><td class="align_center" rowspan="2">ETS (MPa)</td></tr><tr class="thead"><td class="align_center"><i>x</i></td><td class="align_center"><i>y</i></td><td class="align_center"><i>z</i></td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">A</td><td class="align_center">3.44</td><td class="align_center">5.07</td><td class="align_center">13.92</td><td class="align_center">4.78</td></tr><tr><td class="align_left">B</td><td class="align_center">4.15</td><td class="align_center">4.91</td><td class="align_center">7.38</td><td class="align_center">2.72</td></tr><tr><td class="align_left">C</td><td class="align_center">2.05</td><td class="align_center">2.63</td><td class="align_center">2.16</td><td class="align_center">0.92</td></tr><tr><td class="align_left">D</td><td class="align_center">1.16</td><td class="align_center">2.57</td><td class="align_center">1.34</td><td class="align_center">0.83</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The distribution of PPVs and ETS.</div>

Shock and Vibration

tab9

Table 9

Table 9: Prediction of Bench Blasting Vibration on Slope and Safety Threshold of Blasting Vibration Velocity to Undercrossing Tunnel 