Prediction of Blasting Vibration Velocity of Layered Rock Mass under Multihole Cut Blasting

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">No.</td><td class="align_center">Rock type</td><td class="align_center">Layer depth (m)</td><td class="align_center">Elastic modulus (GPa)</td><td class="align_center">Density (kg/m<sup>3</sup>)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left"><i>L</i><sub>1</sub></td><td class="align_center">Moderately weathered granite</td><td class="align_center">10</td><td class="align_center">30</td><td class="align_center">2300</td></tr><tr><td class="align_left"><i>L</i><sub>2</sub></td><td class="align_center">Sandstone</td><td class="align_center">5</td><td class="align_center">10</td><td class="align_center">2100</td></tr><tr><td class="align_left"><i>L</i><sub>3</sub></td><td class="align_center">Clay</td><td class="align_center">3</td><td class="align_center">4</td><td class="align_center">1600</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Parameters of each rock layer in the upper part of granite.</div>

Shock and Vibration

tab2

Table 2

Table 2: Prediction of Blasting Vibration Velocity of Layered Rock Mass under Multihole Cut Blasting 