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6440— <br />6420— <br />.:•e <br />6360— <br />I <br />PORTAL BENCH <br />FILL ZONE <br />BENCH <br />ESS ROAD <br />DRY SOIL CONDITIONS <br />GROUND WATER LEVEL <br />DUE TO DEWATERING. <br />CASE NUMBER <br />DEWATERING SYSTEM <br />LEFT IN PLACE <br />DEGREE OF <br />COMPACTION <br />UPSLOPE RETAINING WALL <br />LEFT IN PLACE <br />MINIMUM FACTOR <br />OF SAFETY <br />4 <br />YES <br />85% <br />NO <br />1.691 <br />5 <br />YES <br />95% <br />NO <br />1.675 <br />6 <br />YES <br />85% <br />YES <br />1.676 <br />CASE NUMBERS 4816 <br />CASE NUMBER 5 <br />EXH /B/ T No. 2 <br />STABILITY ANALYSES - ACCESS ROAD <br />STATION 60+ 83 <br />(DEWATERING SYSTEM OPERATING ) <br />SCALE: I "= 20 <br />20' 0 20 40' <br />510' <br />Permit Number p <br />Class: OPermit ����� <br />Sectlon/E%hlblt : <br />Class: Revision - <br />TYpe/Seq_ <br />Class: O Report O Hydro OGeneral ----------- - -- - - - - <br />- <br />Doc Type: - - -. -. _ <br />OApplication (Coal only) O Bond ❑ Enforcement 0 Inspection <br />ee <br />FILL ZONE <br />15'0' <br />BIN WALL INCLUDED FOR <br />CASE NUMBER 6 ONLY . <br />FILL ZONE <br />1 <br />DRY SOIL CONDITIONS <br />2001 25101 <br />II�III �IIII ��II II�I� �III� II�I� III ��I <br />scale: I" = ?0' merricK and company <br />drawn J. P. ® enpineers and architects <br />p.o. box 2i'026 tole (303) 751 -0741 <br />checked D.A.F. 10855 east bethany drive • denver,cotorado SO= <br />approved D.A.F. <br />job no. 103-3924 date 4 - 11 - 81 sh. 2 of 7 <br />EXHIBIT 2 <br />