PERMFILE130956

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: Slope Stability Analysis of the Sediment Pond Embankments
• Section_Exhibit Name: NH2 1996 Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-10 Part 8
• Media Type: D
• Archive: Yes

• 5. Factor of Safety Cases and Results
U
•
Case # Density Cohesion Internal Minimum Comments
(Ibs/cu.ft.) (Ibslsq.ft.) Angle of Factor of
Friction Safety
1 -embankment 119 280 30 2.19 This case uses
slightly higher
1 -foundation 110 0 33 foundation
density.
2 -embankment 119 280 30 1.73 This is the case
which uses the
2 -foundation 82 0 33 low values from
Table 1.
3 -embankment 106 200 28 1.52 Absolute worst
th
t
case s
reng
3 -foundation 76 0 30 parameters.
4 -embankment 118.6 420 33 1.95 Most likely case
using average
parameters from
4 -foundation 84.8 0 34 Table 1 and
density measured
on site.
5 -embankment 119 280 30 2.46 Case where
cohesion is
present in
il
f
oundation so
5 -foundation 82 160 33
and embankment
parameters are
conservative
6 -embankment 118.6 420 33 2.54 Case where
cohesion is
present in
f
il
d
ti
oun
on so
a
6 -foundation 82 160 33
and embankment
parameters are
average
(Revised 12/00) Attachment 2.05.3(3) -10-175