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CREST ELe963 qq <br />EXISTING POND LEVEL EXISTING M. CL. e9 O EM94NXMENT BLOC. "11 <br />(IN STAGE) /NH.U.0 I6 1[ <br />FAILUR 1.6 —r <br />... ROCK sol \ WITH St <br />•�. CRITICAL <br />CIRCULAR FAILURE {VII /KL' <br />��... <br />�... <br />\ CRITICAL BLOCK IAILUR[ lYRIK[ <br />— .l \PROPOSED K. - <br />® O \ <br />\ <br />CASE A - EXISTING EMBANKMENT CURRENT POOL , <br />FACTOR N 9A1IVV <br />oTATIC Pe[UDO•{TATIC <br />CASE B- EXISTING EMBANKMENT MAXIMUM POOL <br />MAXIMUM 3.D STAGE POND LEVEL <br />Z E69ETJL_ � _ �� CREST EL. HTS <br />O <br />ROCX� •• \�^ O <br />kJ <br />EMBANKMENT I2M STAGE) <br />FACTOR OF SAFETY <br />STATIC <br />PSEUDD•STATIC <br />C....... <br />1 9 <br />N <br />FAILURE <br />u. <br />7 <br />BLOCK <br />• <br />W <br />FAK% <br />IPCF) <br />BLOCK <br />V <br />1 <br />FAILURE <br />1.3 <br />— <br />NITN "RM <br />V <br />(D <br />FILL s•M <br />ISO <br />TOG <br />u• <br />M <br />® <br />RocR aMN <br />in <br />o <br />ar <br />CD <br />© <br />Dr <br />ND <br />J <br />SD• <br />I <br />N <br />0 <br />•a.l[D ISO " "D a <br />Lo <br />D <br />,� <br />I ESO <br />r <br />hoc. <br />"DARK. <br />© <br />D[DARKR <br />I'l0 <br />W <br />.Y <br />[C <br />so, <br />(:1 <br />E <br />= <br />zw <br />LL <br />f <br />m <br /><� <br />O 991 <br />a' <br />z <br />c <br />r <br />t <br />W <br />f <br />Oe <br />W se[ <br />� <br />Y <br />x <br />843 <br />0 <br />� <br />4 <br />Oa[ <br />mm <br />00 <br />W <br />j <br />Soo <br />U <br />O <br />K <br />W <br />d <br />= <br />�a <br />Al <br />ssn <br />N <br />xm <br />Y <br />m <br />_ <br />F 094( <br />W <br />O <br />4 <br />z <br />= <br />1- 091D <br />m <br />am <br />m <br />W <br />e <br />O <br />J <br />� <br />W sBBe <br />�? <br />IU <br />saw <br />0420 ' <br />ll09" <br />�J <br />9DDD <br />U) <br />1- 05.0 <br />W <br />N <br />W. <br />O ogle <br />y� <br />Z <br />� <br />� <br />W <br />J <br />Oeeo <br />a <br />)- <br />0050 <br />' `r jI <br />FJ <br />aszo <br />CREST ELe963 qq <br />EXISTING POND LEVEL EXISTING M. CL. e9 O EM94NXMENT BLOC. "11 <br />(IN STAGE) /NH.U.0 I6 1[ <br />FAILUR 1.6 —r <br />... ROCK sol \ WITH St <br />•�. CRITICAL <br />CIRCULAR FAILURE {VII /KL' <br />��... <br />�... <br />\ CRITICAL BLOCK IAILUR[ lYRIK[ <br />— .l \PROPOSED K. - <br />® O \ <br />\ <br />CASE A - EXISTING EMBANKMENT CURRENT POOL , <br />FACTOR N 9A1IVV <br />oTATIC Pe[UDO•{TATIC <br />CASE B- EXISTING EMBANKMENT MAXIMUM POOL <br />MAXIMUM 3.D STAGE POND LEVEL <br />Z E69ETJL_ � _ �� CREST EL. HTS <br />O <br />ROCX� •• \�^ O <br />kJ <br />EMBANKMENT I2M STAGE) <br />FACTOR OF SAFETY <br />CRITICAL CIRCULAR FAILURE SURFACE <br />CRITICAL BLOCK FAILURE SURFAC[, <br />PROPOSED BERM /1111 <br />!1 (D \\\ <br />CASE C - RAISED EMBANKMENT MAXIMUM POOL <br />a <br />MATERIAL PROPERTIES <br />MATERIAL <br />STATIC <br />PSEUDD•STATIC <br />C....... <br />1 9 <br />1.4 <br />FAILURE <br />TYPE <br />7 <br />BLOCK <br />• <br />1 ] <br />FAK% <br />IPCF) <br />BLOCK <br />V <br />SURFACE <br />FAILURE <br />1.3 <br />— <br />NITN "RM <br />CRITICAL CIRCULAR FAILURE SURFACE <br />CRITICAL BLOCK FAILURE SURFAC[, <br />PROPOSED BERM /1111 <br />!1 (D \\\ <br />CASE C - RAISED EMBANKMENT MAXIMUM POOL <br />a <br />MATERIAL PROPERTIES <br />MATERIAL <br />MATERIAL <br />UNIT IVEIGHT <br />COHESION <br />FRICTION <br />APPLICABLE <br />N0. <br />TYPE <br />7 <br />T <br />ANGLE <br />PIEIOMETRIC <br />IPCF) <br />(ISF) <br />V <br />SURFACE <br />mYr.n[° <br />(D <br />FILL s•M <br />ISO <br />TOG <br />u• <br />SOIL <br />® <br />RocR aMN <br />in <br />o <br />ar <br />SOIL <br />© <br />ALLUVIUM <br />ND <br />D <br />SD• <br />SOIL <br />0 <br />•a.l[D ISO " "D a <br />Lo <br />D <br />,� <br />I ESO <br />r <br />hoc. <br />"DARK. <br />© <br />D[DARKR <br />I'l0 <br />IN.DOO <br />.Y <br />ROCK <br />'Y <br />0510 O <br />i ►. <br />W <br />J <br />eeeo u <br />Ise" - <br />—0830 <br />SCALE <br />SO 0 b 60 FEET <br />FIGURE 9 <br />STABILITY ANALYSIS RESULTS <br />LOWER TAILINGS DAM <br />BULLDOG MOUNTAIN OPERATION <br />PREPARED FOR <br />HOMESTAKE MINING COMPANY <br />CREEDE,COLORADO <br />immmm�nunllmnlmlm <br />19866 <br />I <br />NOTV <br />"I TAE "v[A[LV ""'ED 'AD ME•TN[ "D "D.O.. IS MODELED " <br />• ' <br />ID <br />.A BETWEEN *M' YND'W YRM IR I"LDMIMG �: <br />•q` •xD I.DI <br />, W <br />y W <br />1. <br />-q• T" Ip.1EpMTAI I • [r <br />WIS." <br />HEM" EMa" unre p . p•. <br />'Y <br />0510 O <br />i ►. <br />W <br />J <br />eeeo u <br />Ise" - <br />—0830 <br />SCALE <br />SO 0 b 60 FEET <br />FIGURE 9 <br />STABILITY ANALYSIS RESULTS <br />LOWER TAILINGS DAM <br />BULLDOG MOUNTAIN OPERATION <br />PREPARED FOR <br />HOMESTAKE MINING COMPANY <br />CREEDE,COLORADO <br />immmm�nunllmnlmlm <br />19866 <br />I <br />