Numerical Study on the Impact Instability Characteristics Induced by Mine Earthquake and the Support Scheme of Roadway

<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">Parameters</td><td class="align_center">Elastic modulus (GPa)</td><td class="align_center">Compressive strength (MPa)</td><td class="align_center">Tensile strength (MPa)</td><td class="align_center">Contact normal stiffness (GPa/m)</td><td class="align_center">Contact shear stiffness (GPa/m)</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">Combined support</td><td class="align_center">35</td><td class="align_center">150</td><td class="align_center">100</td><td class="align_center">20</td><td class="align_center">20</td></tr><tr><td class="align_left">Flexible support</td><td class="align_center">200</td><td class="align_center">40</td><td class="align_center">40</td><td class="align_center">4</td><td class="align_center">4</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Properties of the structure elements in the UDEC.</div>

Shock and Vibration

tab5

Table 5

Table 5: Numerical Study on the Impact Instability Characteristics Induced by Mine Earthquake and the Support Scheme of Roadway 