Study on Mechanism of Cumulative Directional Blasting of Brittle Karst Limestone in the Guizhou Province

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Density (kg/m<sup>3</sup>)</td><td class="align_center">Longitudinal wave velocity (m/s)</td><td class="align_center">Wave impedance (Ω)</td><td class="align_center">Elastic modulus (GPa)</td><td class="align_center">Tensile strength (MPa)</td><td class="align_center">Compressive strength (MPa)</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">2400</td><td class="align_center">4800</td><td class="align_center">11.52 × 106</td><td class="align_center">35.35</td><td class="align_center">2.96</td><td class="align_center">68.44</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Advances in Materials Science and Engineering

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Table 5

Table 5: Study on Mechanism of Cumulative Directional Blasting of Brittle Karst Limestone in the Guizhou Province 