Similar Material Simulation Study on Protection Effect of Steeply Inclined Upper Protective Layer Mining with Varying Interlayer Distances

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Interlayer distance (mm)</td><td class="align_center">Maximum pressure-relief value (kPa)</td><td class="align_center">Maximum pressure-relief ratio (%)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">250</td><td class="align_center">94.80</td><td class="align_center">50.8</td></tr><tr><td class="align_left">450</td><td class="align_center">68.99</td><td class="align_center">37</td></tr><tr><td class="align_left">650</td><td class="align_center">43.89</td><td class="align_center">23.5</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Maximum pressure-relief value and pressure-relief ratio with varying interlayer distances.</div>

Advances in Civil Engineering

tab6

Table 6

Table 6: Similar Material Simulation Study on Protection Effect of Steeply Inclined Upper Protective Layer Mining with Varying Interlayer Distances 