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Appendix D-- Slope Stability Analysis for poEIRL-2001-11<br />
Environmental Cap Rev. e l Drrfl R<br />
RediindStrikeout<br />
Table D-3. Summary of Alternative 3 Stability Analysis.<br />
Slope Seismic<br />
Condition Soil Properties Percent Slope Itelght, m Coefficient Foctorof<br />
sarety<br />
(ft)<br />
tg)<br />
Approximate<br />
Derormation,<br />
em<br />
(ln.)<br />
Silt: Static:0 >10 0<br />
Veneer stability<br />
(engineered<br />
barrier stability)<br />
Q<br />
c<br />
Y<br />
. 30 degrees<br />
s 0<br />
s<br />
. 995 ( 1051b11t )<br />
296 0.92 (3) Dynamic:<br />
0 . 78<br />
1.0<br />
23 (1) (parallel<br />
to layer, at top<br />
of silQ'<br />
Engineered fill': Static: 0 >2.0 0<br />
Overall stability<br />
of engineered<br />
fdl and erosion<br />
protection<br />
^ s<br />
c s<br />
Y s<br />
40 degrees<br />
0<br />
1,220 kg/ms<br />
(1301b1fti)<br />
2% uPPef N.<br />
311:1 V lower<br />
parl (see<br />
Figure D-2)<br />
24 (90) Dynamic:<br />
0.4<br />
1.0<br />
25 5 . 0 (1-2)<br />
(along surface<br />
shown In<br />
Figure D-2f D-2)<br />
'Derormation for aven8e design acceleratiun for critical displacemcnt plane.<br />
"Presence of engineered batrier ignored. Erosion protection modeled as a 1.8-m ( 6-ft)-dtick layer with unit weight of<br />
1,266 kg/ms ( 1351b/lts) and hiction angle ( #) of 43 degrees.<br />
•Defonaation for average design acceleration for failure surface of 0.8 g.<br />
2<br />
3<br />
4 Table D4. Summary of Atternative 4 Stability Analyses for Exterior Bottom Liner.<br />
Sbpe Sap>,gc<br />
Equipment<br />
^^^ Factor<br />
Condition Soil Properties Slope Height, as<br />
(n)<br />
Height, in<br />
(e)<br />
of<br />
O^ k<br />
Safety<br />
^ e 24degrees 0 0 1A5<br />
c s 0 for textured 0.15 0 1.3<br />
Veneer lmpg/gcocompositelnterface<br />
stability 4, 26<br />
311:1V 9.2(30)<br />
(bottom liner<br />
stability) Y s (0.5) 609(4A00) 1.3<br />
(3 ft) operating layer during<br />
wrstntction<br />
NOTE: Stability of oventl embankment and final engineered barrier for Alternative 4 we identical to those results for<br />
Alternative 3 shown In Table D-3 and are not repeated In this table.<br />
Final Feasibility Stnndy fors8e Canyon Disposition Initiative (221-17 Facility)<br />
)one 2003 D-18