4. A lake with a water depth of 12m in underlain by a soil with a saturated unit weight of 18.2 kN/m³. (a) Compute the total vertical stress, pore water pressure, and effective stress at a point 8 m below the bottom of the lake. (b) What happens to the vertical stress, pore water pressure and the effective stress at this point, if there is an upward seepage.

4. A lake with a water depth of 12m in underlain by a soil with a saturated unit weight of 18.2 kN/m³. (a) Compute the total vertical stress, pore water pressure, and effective stress at a point 8 m below the bottom of the lake. (b) What happens to the vertical stress, pore water pressure and the effective stress at this point, if there is an upward seepage.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter10: Stresses In A Soil Mass

Section: Chapter Questions

Problem 10.21P: Refer to Figure 10.48. If R = 4 m and hw = height of water = 5 m, determine the vertical stress...

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Concept explainers

Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.

Question

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4. A lake with a water depth of 12m in underlain by a soil with a saturated unit weight of 18.2
kN/m³.
(a) Compute the total vertical stress, pore water pressure, and effective stress at a point 8 m below
the bottom of the lake.
(b) What happens to the vertical stress, pore water pressure and the effective stress at this point, if
there is an upward seepage.

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Please I want the solution in less than 15 minutes
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Solve the following problems. Provide complete solutions and summary of answers. The water table in soil deposit is 2 meters below the ground surface. The soil above the water table has a dry unit weight of 14.85 kN/cu. Meter. The saturated unit weight of the soil is 20.58 kN/cu.meter. Determine the following: a. Total Stress at a point 4.80 meters below the ground b. Total Pore pressure 4.80 meters below the ground c. Total effective stress at a point 4.80 meters below the ground.
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