Ans.: ov= 0.844 kN/m20.61.21.8 2.43.03.64.24.8Head (m)(cr5.7 In a certain sand deposit, with ysat = 20 kN/m3, the water table is at theground surface. Compute the total stress, pore pressure, and effectivestress on a horizontal plane at a depth of 4.5 m for each of the followingcases: a. Static groundwater. b. Upward flow under a gradient of 0.5,Ans.: (a) ov = 45.86 kN/m?, (b) o, = 23.78 kN/m?5.8 A jar 100 cm high and 10 cm2 in cross-sectional area is filled with soil andwater having an overall average unit weight of 10.57 kN/m3. The specificgravity of the soil is 2.80. For each of the following three cases computeov, u, and, o'v, at the bottom of the jar:Uniform slurry. b. The sediment of soil 5 cm thick and seawater, Yw= 10.07 kN/m3. c. The sediment of soil 6 cm thick and pure water, Yw= 9.81 kN/m. For cases (b) and (c) compute the void ratio of thesediments. Ans.: (a) o, = 10.57 kN/m?, u = 9.81 kN/m², ov = 0.76 kN/m?, (b) a, =10.567 kN/m2, u = 10.07 kN/m2, ov = 0.497 kN/m?, e = 0.8255, (c) ơ, = 10.57 kN/m?, u= 9.81 kN/m?, ov = 0.76 kN/m², e = 0.412a.Civil Eng. Dept. - College of Eng.Soil MechanicsAssistant Prof. Dr. Ahmed Al-Obaidi(171)T449. Ans.: o, 0.844 KN/m06121.82.43.03.6 4248Head (m)Velocity(cm/sec)5.7 In a certain sand deposit, with Yaat = 20 kN/m3, the water table is at theground surface Compute the total stress, pore pressure, and effectivestress on a horizontal plane at a depth of 4.5 m for each of the followingcases: a. Static groundwater. b. Upward flow under a gradient of 0.5,Ans.: (a) ov 45.86 kN/m', (b) o, - 23.78 kN/m?5.8 A jar 100 cm high and 10 cm? in cross-sectional area is filled with soil andwater having an overall average unit weight of 10.57 kN/m3. The specificgravity of the soil is 2.80. For each of the following three cases computeov, u, and, o'v, at the bottom of the jar:Uniform slurry. b. The sediment of soil 5 cm thick and seawater, Yw= 10.07 kN/m. c. The sediment of soil 6 cm thick and pure water, yw= 9.81 kN/m?. For cases (b) and (c) compute the void ratio of thesediments. Ans.: (a) a, = 10.57 kN/m, u = 9.81 KN/m, o, = 0.76 kN/m, (b) a, =10.567 KN/m, u- 10.07 kN/m, o, = 0.497 kN/m, e = 0.8255, (c) a, = 10.57 kN/m, u9.81 KN/m', o',0.76 kN/m, e= 0.412Civil Eng Dept-College of EngSoil MechanICSAssistant Prof Dr. Ahmed Al-Obaidi(171)15 PMO.4/12/202113Y.G.an

unit wt of soil γ=20 KN/m3depth of the soil at bottom H=4.5 mand hydraulic gradient i=0.5⇒(a)…

Head (m) (cm 5.7 In a certain sand deposit, with Ysat = 20 kN/m3, the water table is at the ground surface. Compute the total stress, pore pressure, and effective stress on a horizontal plane at a depth of 4.5 m for each of the following cases: a. Static groundwater. b. Upward flow under a gradient of 0.5,

Head (m) (cm 5.7 In a certain sand deposit, with Ysat = 20 kN/m3, the water table is at the ground surface. Compute the total stress, pore pressure, and effective stress on a horizontal plane at a depth of 4.5 m for each of the following cases: a. Static groundwater. b. Upward flow under a gradient of 0.5,

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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