Selection of Compatible Coal Seam for Methane Drainage Operation Based on Uncertain Geological Conditions: A Hybrid Fuzzy Approach

<table class="table-group" id="tab9"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Seam</td><td class="align_center">Fuzzy value</td><td class="align_center">Fuzzy class</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left"><i>B</i><sub>2</sub></td><td class="align_center">0.8317</td><td class="align_center">Moderate</td></tr><tr><td class="align_left"><i>B</i><sub>1</sub></td><td class="align_center">0.7066</td><td class="align_center">Poor</td></tr><tr><td class="align_left"><i>C</i><sub>2</sub></td><td class="align_center">0.8661</td><td class="align_center">Good</td></tr><tr><td class="align_left"><i>C</i><sub>1</sub></td><td class="align_center">0.8680</td><td class="align_center">Very Good</td></tr><tr><td class="align_left"><i>D</i></td><td class="align_center">0.6869</td><td class="align_center">Very Poor</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Fuzzy classification for different seams of Parvadeh.</div>

Mathematical Problems in Engineering

tab9

Table 9

Table 9: Selection of Compatible Coal Seam for Methane Drainage Operation Based on Uncertain Geological Conditions: A Hybrid Fuzzy Approach 