2008-04-15_REVISION - M1980244 ‎(191)‎

• Permit No: M1980244
• IBM Index Class Name: REVISION
• Doc Date: 4/15/2008
• Doc Name: VOL IV APP 5 Surface Mine Slope Design
• From: CC & V
• To: DRMS
• Type & Sequence: AM9
• Media Type: D
• Archive: No

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Horizontal Distance (ft)
~ As Mined - - - -Average Slope
Parameter Mined
Berm width 45 ft
Inter bench angle 79 deg
Intermediate setback 30 ft
Number of benches 3
Bench height 35 ft
O~,erall angle 40 deg
Angle of repose 35 deg
,, 2nd Intermediate 13.5 cu.yd./ft length
~~ 1st Intermediate 13.5 cu.yd./ft length
a
ca
v Main Bench 30.4 cu.yd./ft length
Total 13.5 cu.yd./ft length
Holding mass 22.8 ton/ft length
Scale No scale
D
rawn: A. Brown 9-Apr-2008
AdrianBrown Drawing: 138521-MLE
1GI°n &ovm Conwlt°nf°, Inc.
30 N'°;~$ e
~nvmOO
File:
D:11385
cri15121m1e14
. _
Mine Life Extension S
FIGURE 6
SLOPE DESIGN -DRY PIPE ROCK