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Sut,~, Inc. Twentym~al Company <br />Northern Mining District <br />1000-ft Panel <br />Figure 1 -Maximum Subsidence vs Width/bepth Ratio for the Foidel Creek Mine <br />100% <br />110/99 <br />90% <br />r 80% <br />rn <br />.~ <br />x <br />E 70% <br />a <br />m <br />H <br />w <br />c 60% <br />at <br />rn <br />m <br />.. <br />m 50% <br />t' <br />m <br />a <br />a 40% <br />A <br />m <br />v <br />m 30% <br />v <br />.~ <br />a <br />~ 20% <br />10% <br />0% i r l I I I i I I I I I I a ~~-~-- <br />o Oy p^ ~y o`L 'l~' p~ „~'~ po- Ay ~~ h~ p~ rod p1 1~ ~~ 0~ ~~ g~ ~` ~~ ~~` ~.'~ ,~'y ,y'~ ~`5 ~h .~? p`'~ .~`? yc, ~6 6c, ~7 1h ,~~ <br />Panel Width/Depth <br />V Y T l ~ ~~. r~ n/ 1 /J' d' // 9 <br />FC_PRED_1998_201N_CASE_FIN.xIs: Figure 1 <br />PN: 99-03 <br />