Research on Key Factors Influencing Surface Subsidence of Paste Backfilling Mining in Thick Coal Seam of Deep Mine

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Proportional scale</td><td class="align_center">Meaning</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_center">The weights of ui and uj are the same</td></tr><tr><td class="align_left">3</td><td class="align_center">The weight of ui is greater than uj</td></tr><tr><td class="align_left">5</td><td class="align_center">The weight of ui is larger than that of uj</td></tr><tr><td class="align_left">7</td><td class="align_center">The weight of ui is stronger than that of uj</td></tr><tr><td class="align_left">9</td><td class="align_center">The weight of ui is significantly higher than that of uj</td></tr><tr><td class="align_left">2, 4, 6, 8</td><td class="align_center">The median of 1, 3, 5, 7, and 9</td></tr><tr><td class="align_left">Reciprocal</td><td class="align_center">If the ratio of ui and uj is aij, the ratio of uj and ui is 1/aij</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The meaning of proportion quotient.</div>

Advances in Civil Engineering

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Table 3

Table 3: Research on Key Factors Influencing Surface Subsidence of Paste Backfilling Mining in Thick Coal Seam of Deep Mine 