hw4-sp10soln

hw4-sp10soln - 60 L011 owl CE 467L Geotechnical Engineering...

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Unformatted text preview: 60 L011 owl CE 467L Geotechnical Engineering Spring 2010 Homework 4 Due: Tuesday, F ebruaty 23, 2010 Read Section 2.4 prior to completing these three problems. Show all your work clearly. I. For the darn shown below (k = 5 x 10'4 cm/s), calculate the seepage beneath the dam, q, per day, and the pore water pressures at points F and G. 2. For the following flow conditions (k — 2 x 10'3 cm/s) find: a. The flow q per hour beneath the dam b. The pore water pressure at point C. 0. Assuming your answer for (b) represents the average pore water pressure across the base of the dam, calculate the resultant upward force acting on the dam (per m out of the page). Assuming mm = 24 kN/m3, approximate the downward force (weight) exerted by the concrete dam (per m of dam out of page). Is the dam is stable from uplift? w .0 t 3m“ ‘e' C“ -' ‘f I Meow. ‘ll-I-l-I’. .IIIIIII‘ , . 3. Complete Problem 2.5 in Craig lHPEldIOU‘Z-a fra— 5x10"! W/S .— fixzo‘bM/QC fij: ELL. ELF Alng Nd :IZ LN, : Gm =5IO’5’V (Q, 3-4 )_ -5 3 3600 Cf 2‘ 5'20 M) [Z M ‘ 52740 m/S‘aC Y “in fi24j1f “ cw: 05 = 1.7% *2” W m 516 AW Ah: I 5 T. LE... -—- 2-2: : "m SS PM 9W dmp Ak w mama 05 (MP 19’“ 1“- Mdm = 2.5 $VOPS L‘F; k ~ NANA/x = (m - 2-5695) s 4.75 m ha: ‘— "qlwv (Muma kw, 7 H.76»(-4.2) = Ms M W :XWWF ‘ q'glkfggfiqs "‘5 “i 37.? “fig, m Fe. 6 I, MdW—Lq‘g 1% = 6M — (15(05): 1.25% has : “L‘IJZM’ hm : 1.1544(1) = 5.45 m {AG-’[Ciszt’d‘t’gaéffifiwb = 53-5 RB J2. h-v ZNOFSCM/ $244105 9‘75“ SEC [Al—v" 26"" '7’“ =" N4: 5: 5 MA = {2 1"L. .. [M k -: —— ___ = A Ma [LAVO‘VS ‘53 4MP _ M - 3 - as a5 M71: - in = WW v 3 WW “b dw~~> 5) Nam-=55 h; —— 1m - MAMA/x - IOl - 5.50.52) = 10.3! M L321 " F-[Om (dCJ‘ULh/x @ 6&0.) hpc 3 [Calm - (4qu 7— 20-54% (A; = m 1A” s 4.441(203D = m LL?“ W C) Fu?: uc- Rim = = Emmi Awrmfiwfl dam/v» fid’v‘avx 06;. 0-. 4171132108, '« VOL : {2(a) HMGOXD 3 1250 W3 figoml [2' H M (90 w» PM i924 wrflfllwo m3) 7 201,520 m FW>FUP so down \‘g SEEM; ...
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hw4-sp10soln - 60 L011 owl CE 467L Geotechnical Engineering...

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