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

<table class="table-group" id="tab7"><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">Pressure concentration coefficient at descending location</td><td class="align_center">Pressure concentration coefficient at ascending location</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">250</td><td class="align_center">1.218</td><td class="align_center">1.202</td></tr><tr><td class="align_left">650</td><td class="align_center">1.046</td><td class="align_center">1.080</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Pressure concentration coefficient with varying interlayer distances.</div>

Advances in Civil Engineering

tab7

Table 7

Table 7: Similar Material Simulation Study on Protection Effect of Steeply Inclined Upper Protective Layer Mining with Varying Interlayer Distances 