Philadelphia UniversitY

Faculty of EngineeringDept. of Civil Eng.

Q-l;

FINAL EXAM

Student Name:

Student Number:

(4x2 - 8 marks)

A sand sample is failed under constant confining pressure

or = 250 kPa. If the ratio of (o1l o3) at failure is 3'69 what would

be the magnitude of ;a- the angle (D.

b- the inclination of failure surface w.r.t o1 - plane'

c- the soil shear strength.d- the normal stress that acts on failure surface (on)'

Q-2;a- (3xZ=6marks)

1- What kinds of sample are obtained from bore holes and what

ls the function of each?

2- What is the minimum No. and depth of bore holes to be

conducted at a given building site.

3- Define the number ( N ) of SPT'

(6 marks)

Check the stability of the slope presented in Fig'

b-

\ts*/^

L = Z - )

a

4=8

Course Title: Foundation EngineeringCourse No: (0670531)Lecturer: Prof. Fouad Al-J

Date z 2 tLl-2017Time Allowed: 2 Hour

TlnJ' WJY,s, t '=19'2 t

lclac3o e

Q3; (2x5 = 10 marks)y'Ae

a- Find ihe required length (L) and thickness (t) of /combineO

Fil l , , Y= /€ kvl i

C{*t lax e* PrYP'-----v----J---' z

8 t--f = tg.g tu4";

f =o.4€ , E - to ao kPa-Iu g l , lCa=o,18 r €r =o.7

Qa; ( 10 marks)

Find the minimum width @) that keeps the wall of Fig'

stable against slidine due to ggl!@' !b9!check stalility of the wall against qg!q!4g'

and f" - 25 MPa

Qt,@-t a f r ,3Xr ,3 ) tu

b- If the amount of settlement is limited to (25) mm. wouldihe total settlement of the column footing presented in Fig.be accepted ?

Given ; S" - qB (t- fr1l E) I*,S" = ((C" H) / (1+e) Log (o"o + Aq) / o"o

6ro*nd

footing: presented in Fig.

Given : Vn = O ( f"r/2 /3) bd

C"l'Afec. (a.3Xa,3) ^

tJ.>a : - PJ -- ., gn! Pt'-,'E-d - h,J,yt; fd*,,i! rro,.rjtr

a l, l,lihsQ'rx?)

7= 6oRP*

U.a loo RPt

. i

iF-nu la n 7l e,l E*4ne.z'1aq ,

d . 7..r::,.

I' FzJ Eo-"*- (?/z/Zt7l

ftu sdort '

Ar;Grvo ^ ,

)

*'7 :

qPf

07 = 6aa/o,*/ = ZJo

€t 0'f ,5 ^^J

oi - 6-z

k P q . 6 t \t \_ 'oj ,t{

o;,

- 3 ,6?

4 ,;n q,'

+ 0,f =.> 9=

v h =

F-=

Disfirb+J +

11a);sf"nbJ f'

o e

=34,?6 L3s

= 3, {? (Zs")laa*

'L-

bv*.-7€

r t t n D

G.,rr.-^ I s [ap. .t'= 1t- o

, so'fl't"*td 2 ''

YsJ = l?'z /cy'[r'^" "6=3o E?^.-J q=8

t

'4 t k'v/'* 4=)a t t Yu= tq ,z - 7 , / : 7 .4 EN\ , , t - ? a fs \ e . ' 29 = iZ '5?(Y V = " 1

\ - J /

) =* ",^ n' = | g' @8- ':';L = v. - ' - ' .

1af t -Fq

6 = W c-" =.t 1'^t -Q- = vv *" . - r*4 3o *sg,6,l /^-ZS c.+d r.q 50 a:!2j3j-_!:_>.9F = - z-

= ---Z- ----1 g62

)

t ,7/6 > /--f

o.Kt t ,oz

tt3 !

a/ tql ,fq =a, i7 .c '3 ac ,$ t

Nt = o,8+a,4f

ut/P3.= o ,3 * o ' t f = o ' 45

= ! ,2 , M i l '

Falt 'gps /. E(o. r) + t. C (n,l) = o. c+a.4Vrr=r,a8 Mil

Vo- e €tO * l.rs b*'o=4(,,5+d)a !,2+4ol

Vrt= l,2f (,.2+q47d: r,f d*s alzY* =Vnl,a8 = t, Ud + t al'q di ",sd - o,eE = o

+ d o{= a,338* -v t=o,Af,^

€l.furea 4=* L/z = g,z +o,5 =3.7-- i# Le7'4

t4ll8 = l ,og

' t'* . - at*.'.

( t , t ) = o 'dot? = t 's. " .

tI

II

,

bl5e = ao(r.t) I -a,?'625]

8ow

5" = co-H A, %r="L6*JG, VaCvt - , Ctc)+t,,(to|=td +tS =gl

Efu

= 22. g6 k.P'

/ 3l+2486 = b.oz62tr t :ryT-

of=

5-=

8r#

> 5, !,g+7t,Lgzz,{ 225 P'6 '

(t's)

y _ a,?Cfl s 3,2^I 'Zt

A4;z So^l t V=t7,6t *=

4^c. ?fc=24

Ch.c/< or&r/evaiaq

9F. l\4s- =Mo

23'6-r9"/ :

f-=ffi=W=o'zzl'n^=Ao*:

ot z =o -*= €'_:;t,n*7){;'zz)*f z = 5, *'* a = ts. as +_zz.lT'V= zz.t(t) -= ,rr."*

V,={(ae.rsxr) = f2.tzs

E=Ev =G; Mae4b

a)= /oo kR

(zz, t)

= 4,777 +?z:t

- - f r t '2s

grl l{=f

N= g\ j , / z taaB +ZA *f 6 = 22o Bs.F=t,5= += ?rvlona_- b2,848E l?t-.tz l?t t2

2?2, e g7 -_ roz,d( g> 8=A,grr. ' '

I

z

ig-j)

8?4.a43a,t2543tr, t2,

Mo Ckrl,^533 8.78

I2.szs---.-+*

: 438. tz,

o, fq= Z,aQ > /'.|.

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