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From page 150... ...
D et er mi nisti c li q uef a cti o n- tri g g eri n g c al c ul ati o n m et h o ds c o m m o nl y li n k i niti al li q u ef a cti o n t o a n e x c ess p or e pr ess ur e r ati o of 1 0 0 % ( a n d/ or c y cli c s h e ar str ai n of 3 %)
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From page 151... ...
. Pri o r t o d et er mi ni n g Ic , t h e eff e cti v e o v er b ur d e n pr ess ur e m ust b e c al c ul at e d t o str ess-n or m aliz e t h e c o n e ti p a n d sl e e v e fri cti o n r esist a n c e v al u es.
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From page 152... ...
2 4 9 ( ππ ππ 1 π‘π‘ ππ ππ ) E q u ati o n 7 T h e i n cr e m e nt i n c o n e ti p r esist a n c e, β π΅π΅ π΅π΅ 1 π§π§ , st e m mi n g fr o m n o nz er o n o npl asti c silt y fi n es, w hi c h ar e m or e c o m pr essi bl e t h a n cl e a n s a n ds a n d yi el d l o w er c o n e ti p r esist a n c es at a gi v e n r el ati v e d e nsit y as a r es ult, is o bt ai n e d usi n g E q u ati o n 8.
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From page 153... ...
m a y t h e n b e d et er mi n e d f or t h e d e pt h of i nt er est usi n g E q u ati o n 2 1.
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From page 154... ...
T h e e x c ess p or e pr ess ur e g e n er at e d is i n t ur n r el at e d t o t h e m a xi m u m s h e ar str ai n i m p os e d u p o n t h e s p e ci m e n d uri n g l o a di n g. H e n c e, t h e pr o c e d ur e t o esti m at e r e c o ns oli d ati o n s ettl e m e nt fr o m v ol u m etri c str ai n i n cl u d es t h e c al c ul ati o n of t h e li miti n g a n d m a xi m u m s h e ar str ai n a nti ci p at e d f or a gi v e n s oil d e p osit a n d s eis mi c e v e nt, r es p e cti v el y.
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From page 155... ...
T h er e aft er, t h e c u m ul ati v e s ettl e m e nt r e pr es e nti n g t h e o n e -di m e nsi o n al r e c o ns oli d ati o n s ettl e m e nt at t h e gr o u n d s urf a c e is c o m p ut e d as t h e s u m of i n cr e m e nt al s ettl e m e nts fr o m t h e b as e of t h e e x pl or ati o n, ππ ππ ππ π‘π‘ , usi n g E q u ati o n 2 7.
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From page 156... ...
. N o a v er a gi n g or li mits ar e r e q uir e d w h e n d et er mi ni n g t h e u nit s ki n r esist a n c e ( E q u ati o n 2 9)
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From page 157... ...
0 8 0. 1 2 T h e pr o c e d ur e f or c al c ul ati n g t h e a m o u nt of dr a g l o a d aft er d et er mi ni n g t h e e n d b e ari n g r esist a n c e a n d si d e r esist a n c e is si mil ar t o t h e a p pr o a c h pr es e nt e d i n t h e l at er st e ps of t h e pr e vi o us t hr e e e x a m pl es.
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From page 158... ...
W or k e d E x a m pl e St e p 1: Est a blis h s oil dat a T h e f oll o wi n g c al c ul ati o n of p ost -s eis mi c r e c o ns oli d ati o n s ettl e m e nt , d o w n dr a g d et er mi n ati o n, a n d dr a g l o a d d et er mi n ati o n w as c o m pl et e d f or a sit e al o n g t h e Mississi p pi Ri v er i n Bl yt h e vill e, Ar k a ns as. T h e s u bs urf a c e at t his sit e c o nsists of s oft t o m e di u m stiff fi n e -gr ai n e d s oils o v erl yi n g m e di u m d e ns e t o v er y d e ns e c o ars e -gr ai n e d s oils.
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From page 161... ...
8 1 7 u 2 = P or e pr ess ur e 6.
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From page 162... ...
2 3 2 u 2 = P or e pr ess ur e 5 7.
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From page 163... ...
D et ail e d pr o c e d ur es a n d c o m p ut ati o ns f or d et er mi ni n g t h e p ost -li q u ef a cti o n r e c o ns oli d ati o n s ettl e m e nt at a d e pt h of 2 4.
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From page 164... ...
E v e nt 2. N ot e: s c al e c h a n g e f or t h e c u m ul ati v e s oil s ettl e m e nt ( s e c o n d ar y x -a xi s)
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From page 165... ...
3 = 0 .5 8 5 π§π§ πΌπΌ = 8 0 ππππ β 1 3 7 ππ ππ = 8 0 β 1 .8 6 β 1 3 7 = 1 1 .5 % ππ π΅π΅ 5 9 .5 t sf It er ati v e c al c ul ati o n r e q uir e d.
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From page 166... ...
. D et ail e d c al c ul ati o n s f or d et er mi ni n g p o st -li q u ef a cti o n s oil s ettl e m e nt.
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From page 167... ...
. D et ail e d c al c ul ati o n s f or d et er mi ni n g p o st -li q u ef a cti o n s oil s ettl e m e nt.
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From page 168... ...
R e s ult s fr o m c al c ul ati o n s t o fi n d c orr e ct e d ti p r e si st a n c e .
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From page 169... ...
R e s ult s fr o m c al c ul ati o n s t o fi n d c orr e ct e d ti p r e si st a n c e .
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From page 170... ...
R e s ult s fr o m C R R , c y cli c str e s s r ati o, a n d f a ct or of s af et y c al c ul ati o n s.
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From page 171... ...
R e s ult s fr o m C R R , c y cli c str e s s r ati o, a n d f a ct or of s af et y c al c ul ati o n s.
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From page 172... ...
5 8 C u m ul ati v e s oil 1 5.
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From page 173... ...
c al c ul ati o n s.
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From page 174... ...
All of t h e c orr el at e d v al u es t h at w er e o bt ai n e d fr o m t h e A L L C P T c al c ul ati o ns ar e als o t a b ul a t e d i n t h e l o w er ri g ht of t h e m ai n wi n d o w.
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From page 175... ...
T o o bt ai n t h e c orr e ct d esi g n c al c ul ati o ns, t h e pil e i nf or m ati o n w as r e q uir e d.
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From page 176... ...
T h e t a b ul at e d v al u es fr o m t h e Pil e C a p a cit y A n al ysis T o ol w er e o bt ai n e d b y s el e cti n g R es ults β R es ults T a bl e fr o m t h e ri b b o n i n t h e Pil e C a p a cit y A n al ysis T o ol wi n d o w ( Fi g ur e G9)
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From page 177... ...
i n t h e pil e w er e o bt ai n e d f oll o wi n g c al c ul ati o ns t h at w er e si mil ar t o t h e c al c ul ati o ns us e d i n D esi g n E x a m pl e 2 a n d pr es e nt e d h er ei n as E q u ati o ns 3 2 t hr o u g h 3 5. T h e l o a d, r esist a n c e, a n d c o m bi n e d l o a d a n d r esist a n c e pl ots o bt ai n e d fr o m t h e A L L C P T Pil e C a p a cit y A n al ysis T o ol o ut p ut a n d a d diti o n al pr o c essi n g ar e pr es e nt e d as Fi g ur e G 1 0.
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From page 178... ...
R e s ult s fr o m A L L C P T Pil e C a p a cit y A n al y si s a n d c al c ul ati o n s (r e p ort e d i n i m p eri al u nit s)
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From page 179... ...
R e s ult s fr o m A L L C P T Pil e C a p a cit y A n al y si s a n d c al c ul ati o n s (r e p ort e d i n i m p eri al u nit s)
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From page 180... ...
T his c ur v e w as o bt ai n e d b y s el e cti n g t h e mi ni m u m v al u e of l o a d a n d r esist a n c e at e a c h gi v e n d e pt h. T h e d e pt h -d e p e n d e nt v al u es of t h e c o m bi n e d l o a d -r esist a n c e c ur v e ar e pr es e nt e d i n t h e Mi n( Q, R)
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From page 181... ...
m et h o d w as us e d i n c o nj u n cti o n wit h t h e s ettl e m e nt c ur v e pr es e nt e d i n Fi g ur e G 1 1 t o d et er mi n e t h e pil e ti p m o v e m e nt. T his pil e ti p m o v e m e nt w as us e d i n ass o ci ati o n wit h t h e el asti c c o m pr essi o n d at a t o d et er mi n e t h e pr e di ct e d l o c ati o n of t h e n e utr al pl a n e usi n g a s oil s ettl e m e nt - pil e s ettl e m e nt pl ot.
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From page 182... ...
. T h e c u m ul ati v e el asti c c o m pr essi o n w as s u btr a ct e d fr o m t h e pil e h e a d m o v e m e nt ( d et er mi n e d i n St e p 1 1)
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From page 183... ...
A n e q ui v al e nt H -pil e s el e cti o n t h at o nl y c o nsi d er e d t h e ti p ar e a r at h er t h a n t h e gr oss ar e a f or t h e b e ari n g c a p a cit y c al c ul ati o ns w as cr e at e d.
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From page 184... ...
L C P C pil e r e si st a n c e o ut p ut f or t h e H -pil e e q ui v al e nt U s er D efi n e d pil e s e cti o n .
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From page 185... ...
N ot e: c o n v ert e d t o i m p eri al u nit s. el asti c c o m pr essi o n d at a t o d et er mi n e t h e pr e di ct e d l o c ati o n of t h e n e utr al pl a n e vi a t h e s oil s ettl e m e nt pil e s ettl e m e nt pl ot.
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From page 186... ...
Fi g ur e G 1 8.
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From page 187... ...
R e s ult s fr o m A L L C P T Pil e C a p a cit y A n al y si s a n d c al c ul ati o n s (r e p ort e d i n i m p eri al u nit s)
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From page 188... ...
0 4 4 3 0. 0 4 4 N e utr al pl a n e l o c ati o n d et er mi n ati o n usi n g E ns oft T Z PI L E w it h Us er D efi n e d A L L C P T d at a as i n p ut B e c a us e t h e diff er e n c e i n t h e n e utr al pl a n e l o c ati o ns ( 2 3.
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From page 189... ...
T h e d at a fr o m Fi g ur es G 2 5 a n d G 2 6 ar e pr es e nt e d i n T a bl e G 1 0 .
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From page 190... ...
Fi g ur e G 2 4. S oil s ettl e m e nt pr o p erti e s i n T Z PI L E
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From page 191... ...
C o m p ari s o n of T Z PI L E u si n g Fi g ur e G 2 6. S ettl e m e nt fr o m T Z PI L E u si n g A L L C P T
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From page 192... ...
T a bl e G 1 0. R e s ult s fr o m A L L C P T/ T Z PI L E a n d a d diti o n al s pr e a d s h e et c al c ul ati o n s.
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From page 193... ...
0 6 4 of v ari a bl es o n 5 6.
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From page 194... ...
T h e d esi g n e x a m pl e i n cl u d e d t h e us e of C P T d at a a n d d et ail e d c al c ul ati o ns f or d et er mi ni n g: 1) p ost -li q u ef a cti o n r e c o ns oli d ati o n s ettl e m e nt wit hi n t h e s oil d e p osit, 2)
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From page 195... ...
" T Z PI L E 2 0 2 1 v 4 " T Pil e C o m p ut er Pr o gr a m. A usti n, T X Fl e mi n g, W
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From page 196... ...
. " D o c u m e nt ati o n a n d a n al ysis of fi el d c as e hist ori es of s eis mi c c o m pr essi o n d uri n g t h e 1 9 9 4 N ort hri d g e, C alif or ni a e art h q u a k e.
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