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_• <br />-- <br />-- <br />.- <br />} :.. <br />-28- <br />APPENDIX B <br />PHYSICAL TEST RESULTS FOR WESTERN U.S. COAL SEAMS <br />Mine or <br />Formation <br />Lower Fort <br />Union fm., WY <br />Decker Mine, WY <br />29.6° <br />35.0° <br />Angle of <br />Internal Friction (¢) <br />~' Hanna, Seam 82, WY <br />Seam 80, WY <br />York Canyon Seam, NM <br />i __ <br />;.• Yark Canyon Seam, NM <br />- Beehive Mine, UT <br />~' Plateau Mine, UT <br />Wattis Seam <br />Third Seam <br />,- Hiawatha Seam <br />DE Seam, Craig, CO <br />' Energy Fuels Mine, CO <br />Wadge Seam <br />Deserado Mine, CO <br />"C" Seam <br />' "D" Seam <br />Roadside Mine, CO <br />Cameo "B" Seam <br />Averages <br />Standard Deviations <br />36.2° <br />40.5° <br />48.70 <br />46.0° <br />35.7° <br />38.60 <br />38.4° <br />34.8° <br />39.9° <br />47.1° <br />30.4° <br />33.9° <br />47.20 <br />38.8° <br />6.10 <br />Cohesion <br />(c) <br />404 psi <br />850 psi <br />448 psi <br />439 psi <br />315 psi <br />332 psi <br />1016 psi <br />824 psi <br />798 Psi <br />1270 psi <br />268 psi <br />217 .psi <br />770 psi <br />540 psi <br />783 psi <br />618 psi <br />308 psi <br />Reference <br />Fahy b Smith, 1976 <br />Lee, Smith b <br />Savage, 1976 <br />Dravo, 1975 <br />Atkinson-Noland b <br />Associates, 1976 <br />Gentry, 1976 <br />McGovern b Ko, 1976 <br />CSM Lab, 1980 <br />CSM Lab, 1977 <br />CSM Lab, 1978 <br />CSM Lab, 1979 <br />CSM Lab, 1981 <br /> <br />