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Ede of Panel f-376, <br /> <br />~; <br />w c <br />1 <br />o ~ ~% 348, <br />50 <br />TATUM <br /> X N Railroad E <br />~ c <br />'n ~ <br />RANCH <br /> <br />• d N <br /> <br />~ _ <br />c 0 ~ ~ O O <br />- 0_ ,- <br /> I <br />cn I ~ ~ H Overburden <br /> <br />4ee <br />+i+ 420' <br /> <br />U + O O O O LL <br />LL <br />+ <br />2 09, ° <br />~° <br />~° <br />~ <br />L <br /> ° <br />O <br />O <br />L <br />° <br />° <br />° <br /> <br />a <br />See L 128' <br />° <br />° <br />° <br />' <br />+ <br /> °O°° u_ 91 <br />m ~ ° 29' ~ Angle of <br />° <br />a Draw = 29° <br />+ ooo <br />w zee ° ° L <br />0 <br />0 <br />~ 0 <br />L <br />O <br />Z 395' <br />• w lee ° <br /> <br />0 <br /> <br /> <br />m <br />w 0 MINED CDAL UNMINED CDAL <br />o c°nter °r <br />Room-and-Pillar 100 0 100 z00 300 feet <br /> Retreat Panel <br /> SCALE <br />Figure 3. Cross-Section from center of Room-and-Pillar panel to House. <br /> Drawn to scale. Area under house is the protection area defined <br />_ by a 15 foot step-out from the structure and a 15 degree vertical <br /> angle projected to the mine. The area defined woud be limited to <br /> S0 percent extraction. The cross-section is based on 11% hard rock <br /> 75% extraction of the coal using SDPS Profile Function Program. <br />