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CALCULATED SAFETY FACTORS <br />CASE A CASE B CASE C <br />FMIN 1.52 1.41 1.30 <br />EXISTING GROUND SURFACE <br />20 <br />2.0 <br />CASE Al <br />CASE B CRITICAL FAILURE SURFACE <br />CASE C <br />CASE A <br />SANDSTONE <br />if = IIOpcf <br />0 = 370 <br />C = 0 <br />INITIAL WASTE ROCK <br />STORAGE PILE <br />FOUNDATION MATERIAL PROPERTIES <br />EFFECTIVE STRESS TOTAL STRESS <br />'6 = 125pcf if = 125 pcf <br />An' <br />0 =340 0 =21.50 <br />C = 250psf C = 600psf <br />HORIZ. & VERT. SCALES112d <br />CASE B <br />SANDSTONE /SHALE <br />75 = 118 pcf <br />0 = 350 <br />C = 0 <br />CASE C <br />0= 330 <br />C= 0 <br />Permit N b <br />Class'. OPermit <br />Section /Exhibit -. _ --.-.-._._._._._._._.-.- <br />Class* O Revision <br />Type /SeQ ._._ _____ --- _---- <br />Class. Report O Hyndro OGen`e_ralT � <br />Doc Type _ L1 �- 3_ -�! �It -- --_ <br />OApp4cation (Coal only) C Bond O Enforcement O Inspection <br />WASTE ROCK PILE STABILITY <br />SECTION 1:2.0 SLOPE <br />i iiiiii hill hill hill hill illil lilt ill <br />001581 <br />GEO -HYDRO CONSULTING, INC. <br />PI GTF e_ I <br />