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• ~.Vb._~ Operation Flan - F'erm3t Area <br />(li Production Methods R< i•quipment <br />Coat is mined underground by room and pillar methods <br />utilizing continuous miners. Primary haulage is accomplished <br />with electric powered shuttle cars. Neit conveyors transport <br />coal from the mi.ninq sectionis) to the surface. All men and <br />material transport is accomplished by rubber-tired battery- <br />powered tractors. <br />Secondary mining ipillaring) was being conducted near <br />the crop line of fault bloc4:: #'~ when the mine J.ast operated. <br />Upon resumption of mining, the balance or recoverable reserves <br />+rom fault blocl; #`~ will be e:;tracted by panel development/ <br />pillaring. The development ^f pane! rooms and pillaring will. <br />be done simuitaneousl.y. At least three access rooms will <br />e>;ist in advance of the cave line. A~ft_er the +ourth roam is <br />driven, pillaring will begin at L-he first raw of pillars. the <br />process of driving rooms and pulling pil.iars will continue in <br />"leap-frog" fashion bac4i toward the point of entry into fault <br />bloc4: #2 at the fault. Upon the completion ^f block: # <br />e;;traction, a decision will be made whether to es;tract the chain <br />pillars in fault bloc4: #1. <br />• Aopro:;imately 1'~'O,UUC1 recoverable in-place tons remain <br />in Cho Lower 'r'innacle seam within fault bloc4::s 18<"=. <br />An e;;haustinq fan has been installed on the portal of <br />the old Ape:; #1 Mine, and the old mine serves as a bleeder- <br />system for pillaring. <br />As of this writing, the o).d Ape:; #1 mine has been <br />intersected at several points by Ape>; #2 worL::ings. The precise <br />drientatian o+ the old mine has been determined. Therefore <br />much of the speculation contained in earlier revisions of this <br />page has been deleted. <br />E::traction of any reserves in fault bloc4; #? is <br />e>;tremely doubtful. H modificatidnirevisian of this plan will <br />be made prior to bloc4: #.~ development. <br />• <br />p.125 & 126 <br />(rev -BS) <br />