Static_10MinProb.Soln

Static_10MinProb.Soln - Rainwater collects behind the...

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Unformatted text preview: Rainwater collects behind the concrete retaining wall shown in Figure 2.7. If the water- saturated soil (specific gravity = 2.2) acts as a fluid, determine the force and center of pressure on a one-meter width of the wall. Figure 2.7 Retaining wall. The force on a unit width of the wall is obtained by integrating the pressure difference be- tween the right and left sides of the wall. Taking the origin at the top of the wall and mea— suring y downward, the force due to pressure is F : f (P e PMXI) dy The pressure difference in the region in contact with the water '- P7P” =pH,ogy I 1 u log L ydy + mag [l + 2.2(y - 1)] dy 0/ i1 m)(13.4 m3) : 131 414 N(29 5461b.) e center of pressure of the force on the wall is obtained by taking moments about the top of the wall. - ‘ = (1000 kg/m3)(9.807 m/s5) l 4 mp. = plug {[0 yldy + [1 yil + 2.20 — 1)] :0} l A . , UM _ A n , .. : IUOO Ko/mthO/mjs‘irlm\15!.53 3).... Ujiéuqiwt a n A M ,,,,,, “mm w . . mccufiwnfigcnv % A Squaw E mmxwu .6 anmhmézz m5 .__w>> 05 £22, LmHmEymco m 5053993 3E8 ccmmeowmfi m¢_E._2m6 _ .93: mam flow. ANN u >:>Em oEoQOv. =0¢v$§3mw¢ofi>> 05 .2 .328 55% _,_m3m:_c_32 320:8 m£ Ugcwn $00.60 Bfiscfim "Eu—£93 35E:— 3. - 25mmth 323m ...
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This homework help was uploaded on 04/17/2008 for the course CHE 353 taught by Professor Poehl during the Fall '07 term at University of Texas.

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Static_10MinProb.Soln - Rainwater collects behind the...

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