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o CALCULATED SAFETY FACTORS <br />a <br />of CASE A CASE B CASE C <br />to O.Og' 1.70 1.58 1.46 <br />a <br />CY <br />0 <br />F 0.05g 1.49 1.38 1.28 <br />w <br />a <br />w <br />0. log 1.32 1.22 1.13 <br />a <br />z <br />z <br />N <br />N <br />m <br />O <br />S <br />EXISTING GROUND SURFACE <br />20 <br />A..r <br />HORIZ. B VERT. SCALESA'I <br />CASE A CASE B CASE C <br />2.25 SANDSTONE SANDSTONE /SHALE SHALE <br />= 1 = IIBpcf tf= 125pet <br />0 <br />I = 377° " 0 0 = 35° 0= 33° <br />C= 0 C= 0 C= 0 <br />INITIAL WASTE ROCK\ <br />CASE A STORAGE PILE \T, <br />-CASE B CRITICAL FAILURE SURFACE \ <br />FOUNDATION MATERIAL PROPERTIES <br />EFFECTIVE STRESS TOTAL STRESS <br />16 = 125pcf 3 =125 pcf <br />0 =34° 0 =21.5° <br />C = 250psf C = 600psf <br />Permit <br />Class: OPermit <br />Section/Exhibit -.---------------- _._. _._._._.___._._._._._._._._._._ <br />Class: O Revision <br />TYPe /Seq _ _.___- _._.___.___. <br />Class ®'Report � Hydro ❑General <br />YP � c <br />Doc T_e___- ,.��-- i�!��_�_ . /2'"e_____________ —____ <br />El-A -I Galion (Coal only) ❑ Bond 0 nforcement Inspection <br />WASTE ROCK PILE STABILITY <br />SECTION is 2.25 SLOPE <br />mill 11111 11111 11111 Hill 11111111111111111 <br />001683 <br />GEO —HYDRO CONSULTING, INC. <br />M1 Arr A <br />