PERMFILE55732

• Permit No: C1981012
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 30 CTL RDA AND DWP CERTIFICATION PART 3
• Media Type: D
• Archive: No

~~ VARY COAL REFUSE FRICTION
I
20
1
1
1
t<
0
o:
0 1
1
1

9 ~~~

2.5:
B ~

/
7

2: ~
6

5

/
4

3 0 3 2 3 4 3 6 3 B
COHESION a 200 pef, B VARIES
7 VARY COAL REFUSE COHESION
L
2.0
1.9
1.6
1.7
0
rc
1.6•
1.5~
1.4~
~~~ VARY PSUEDOSTATIC EARTHQUAKE COEFFICIENT
J
1.7
1.6
1.5
1.4
4
O
1.&
Y
1.2
1.1

~v
.\

~\
qrk' i
tic
~'~ ~
4yi,1,
~
?2. ~
Oi•
~~~

0.05 0.1 0.15
HORIZONTAL EARTHQUAKE ACCELERATION
COEFFlCIENi

ti"~
/?v /
ry/

3 VARY COAL REFUSE UNIT WEIGHT
2.
- 1.
- 1.
- ~ 1.

0
rc
- ~
LL 1.
_ 1
_ 1
30 32 34 36 38
COHESION 0 psf, B' VARIES
~~~ VARY WATER CONDITIONS
V
0
9

OO NC
6 2.5
1

7

2.2:1
6 _
2.
5

4

85 95 105 115 125
UNR WEIGHT (paf)
FACTOR OF SAFETY FOR SEVERAL WATER CONDITIONS
RM
CONFlGURATON 1D' OF WATER
AT BASE OF
RDA 20' OF WATER
AT BASE OF
RDA 60' THICK
SATURATED
ZONE AT BENCH } UNIFORMLY INCREASING
WATER LEVEL TO 1/4 OF
ROA HE]GHT AT CREST UNIFORMLY INCREASING
WATER LEVEL TO 1/2 OF
ROA HE]OHT AT CRFST
E%ISIING 1.7 1.0 1.0 l.e 1.5
2.0:1 1.6 1.e 1.3 1.4 1.2
2.2:1 1.8 1.e t.e 1.5 1.}
2.}:1 1.9 1.7 1.8 1.6 1J
II I I II I II I II IIII III DO~C e.i /~11~ 3 ~
4 I VARY COHESION OF SOIL LAYER 7`
2.
i
1
1
0
z
1
4
1
1
0
9 1 NG

2.5:1
6
/
7

2.2:1
6
i
5

4

O 500 1000
STRENGTH ~=25', COHESION VARIES
NOTE:
EXISTING - INDICATES ANALYSIS OF EXISTING ROA
CONFGURATION.
2:1 - INDICATES ANALYSIS OF FULL HEIGHT
PROPOSED RDA CONFIGURATION
WITH 2:1 (H:V) SLOPES BETWEEN
BENCHES.
2.2:11 - INDICATES ANALYSIS OF FULL HEIGHT
I PROPOSED RDA CONFGURATION WITH
2.2:1 (H:V) SLOPES BETWEEN BENCHES.
2.5:1' - INDICATES ANALYSIS OF FULL HEIGHT
PROPOSED RDA WITH 2.5:1 SLOPES
' BETWEEN BENCHES.
5~~ ``~jU~iB~T3o -~ ~~,~>~7
CTL~THOMPSON, INC.
CON ULTINC ENGINEERS
CFOIFT]MCAL/FM7101YF}(fAL/ WTERNLS
1071 ~. IITN AYiIAI[ OUNDI. ODICIIA00 ~{
SUMMARY OF
~ STABILITY ANALYSIS
~ JOB N0. 22,478 FIG. 7