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

<table class="table-group" id="tab5"><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">Length of pressure-relief region (mm)</td><td class="align_center">Offset distance (mm)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">250</td><td class="align_center">669</td><td class="align_center">−50</td></tr><tr><td class="align_left">450</td><td class="align_center">652</td><td class="align_center">−47</td></tr><tr><td class="align_left">650</td><td class="align_center">504</td><td class="align_center">−46</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Pressure-relief region and offset distance with varying interlayer distances.</div>

Advances in Civil Engineering

tab5

Table 5

Table 5: Similar Material Simulation Study on Protection Effect of Steeply Inclined Upper Protective Layer Mining with Varying Interlayer Distances 