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Problem 4: The soil profile consist of a dry sand 5 m thick which overlies a layer of clay having thickness of 7 m. Dry sand has Gs = 2.7 and e = 0.40. While clay has Gs = 2.75 and e = 0.92. Ground water table is located at the interface of the sand and clay. 1. Compute the bottom of the clay layer total, pore and effective stresses. 2. If the water table rises by 3 m, determine the effective stress at the bottom of the clay layer. 3. If the water table lowered by 4 m, determine the effective stress at the bottom of the clay layer.

Problem 4: The soil profile consist of a dry sand 5 m thick which overlies a layer of clay having thickness of 7 m. Dry sand has Gs = 2.7 and e = 0.40. While clay has Gs = 2.75 and e = 0.92. Ground water table is located at the interface of the sand and clay. 1. Compute the bottom of the clay layer total, pore and effective stresses. 2. If the water table rises by 3 m, determine the effective stress at the bottom of the clay layer. 3. If the water table lowered by 4 m, determine the effective stress at the bottom of the clay layer.

Fundamentals of Geotechnical Engineering (MindTap Course List)
Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter9: Consolidation
Section: Chapter Questions
Problem 9.15P
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Problem 4: The soil profile consist of a dry sand 5 m thick which overlies a layer of clay having thickness of 7 m. Dry sand has Gs = 2.7 and e = 0.40. While clay has Gs = 2.75 and e = 0.92. Ground water table is located at the interface of the sand and clay. 1. Compute the bottom of the clay layer total, pore and effective stresses. 2. If the water table rises by 3 m, determine the effective stress at the bottom of the clay layer. 3. If the water table lowered by 4 m, determine the effective stress at the bottom of the clay layer.
Transcribed Image Text:Problem 4: The soil profile consist of a dry sand 5 m thick which overlies a layer of clay having thickness of 7 m. Dry sand has Gs = 2.7 and e = 0.40. While clay has Gs = 2.75 and e = 0.92. Ground water table is located at the interface of the sand and clay. 1. Compute the bottom of the clay layer total, pore and effective stresses. 2. If the water table rises by 3 m, determine the effective stress at the bottom of the clay layer. 3. If the water table lowered by 4 m, determine the effective stress at the bottom of the clay layer.
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