I
10
".,. I , lllil l iillii I !
.. ri,li iiiiiiii!-,:i i .....
, II,I}',.. L11111111_- .....
1,5 "I_ .... _'" :'%: " ';_ii _ .....
• "',<1i,l, L;_.IUII I
1.4 ] : ',;1"1"1-I,."_idl 1IT'btL I. "....
" ,.3 _1.... . llll-'_._ Il'_"lll _'-I.:._. iiiii
_i llll "t>-,I,.l__lk! : JI1H
11 I "' " t1"-----' '--'_1t4..0i_-.. ,rli.t4
1. I III11 I I 11IIIII "'_._,
II
l _11111I I II11111 I .,.iJii
!
II . i ,
illll I lillllll i ilIN
o.o :......:, illlll I I l llitll ! lllti
;_.1111I _1Ii11111 I .....
0 2 4 6 8 10 II 14 16 18 20 ...,,_.
1000
O00-
_ 400-
soo- Figure 3. Typical strength data for
- 01 sands._ -200
ii -4,00., I
-000-_
-TPO- 1
-tO001 ', ,' i" , i
o _ i ll s lo _,,1, i'll ill Io
O.iO/ .....
0.161
°"°1 __
:_ °'°sl _.,.,,.ll
o.oo-1--w,_'1
-o.o54 '
-0.10 4
-0.151
-0.20_ ' I "i '! l ,
o _ ; 5 5 IO 1, l, 1'8Ill lo
'rL_;(..,.)
Figure i. Base excitation, induced
shear stress and temporal variation of
factor of safety along a failure surface