Answered: The soil profile at a site consists of…

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 9.8P

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Question

The soil profile at a site consists of 5 m sand underlain by clay layer. The ground water table is 2 m below the ground surface. Average void ratio of sand is 0.52. Water content of clay is 42% and degree of saturation of sand above water table is 37%.Assume specific gravity of sand and clay is 2.65.

1. Compute the unit weight of clay.

a. 19.82 kN/m³

b. 17.47 kN/m³

c. 18.62 kN/m³

d. 16.20 kN/m³

2. Compute the total pressure 10 m below the ground surface.

a. 185.41 kPa

b. 160.25 kPa

c. 140.53 kPa

d. 153.62 kPa

3. Compute the effective pressure 10 m below the ground surface.

a. 106.94 kPa

b. 96.52 kPa

c. 115.62 kPa

d. 108.36 kPa

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