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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Concept explainers

Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.

Question

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Ans.: ov= 0.844 kN/m2
0.6
1.2
1.8 2.4
3.0
3.6
4.2
4.8
Head (m)
(cr
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,
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 and
water having an overall average unit weight of 10.57 kN/m3. The specific
gravity of the soil is 2.80. For each of the following three cases compute
ov, 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 the
sediments. 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 = 0.412
a.
Civil Eng. Dept. - College of Eng.
Soil Mechanics
Assistant Prof. Dr. Ahmed Al-Obaidi
(171)
T44
9.

Ans.: o, 0.844 KN/m
06
12
1.8
2.4
3.0
3.6 42
48
Head (m)
Velocity
(cm/sec)
5.7 In a certain sand deposit, with Yaat = 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,
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 and
water having an overall average unit weight of 10.57 kN/m3. The specific
gravity of the soil is 2.80. For each of the following three cases compute
ov, 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 the
sediments. 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, u
9.81 KN/m', o',0.76 kN/m, e= 0.412
Civil Eng Dept-College of Eng
Soil MechanICS
Assistant Prof Dr. Ahmed Al-Obaidi
(171)
15 PM
O.
4/12/2021
13
Y.
G.
an

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