Influences of True Triaxial Loading-Unloading Stress Paths on Mechanical Properties and Wave Velocity of Coal Samples subject to Risk of Rock Burst

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left">Lithology</td><td class="align_center">Density (kg/m<sup>3</sup>)</td><td class="align_center">Bulk modulus (GPa)</td><td class="align_center">Shear modulus (GPa)</td><td class="align_center">Cohesion (MPa)</td><td class="align_center">Internal friction angle (°)</td><td class="align_center">Tensile strength (MPa)</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">BRCS</td><td class="align_center">1400</td><td class="align_center">0.38</td><td class="align_center">0.18</td><td class="align_center">2.5</td><td class="align_center">30</td><td class="align_center">1</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Mesoscale parameters used in the FLAC model.</div>

Shock and Vibration

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Table 2

Table 2: Influences of True Triaxial Loading-Unloading Stress Paths on Mechanical Properties and Wave Velocity of Coal Samples subject to Risk of Rock Burst 

Table 2 | Influences of True Triaxial Loading-Unloading Stress Paths on Mechanical Properties and Wave Velocity of Coal Samples subject to Risk of Rock Burst 