) A clay stratum has 2.5 m thickness and has initial overburden pressure of 45 kN/m2. The clay is over consolidated with a preconsolidation pressure of 65 kN/m2.Find the final settlement due to increment of pressure of 55 kN/m2 at the middle of clay layer. Use the following data: Initial void ratio 1.2 Compression index = 0.27 Swelling index 0.06

) A clay stratum has 2.5 m thickness and has initial overburden pressure of 45 kN/m2. The clay is over consolidated with a preconsolidation pressure of 65 kN/m2.Find the final settlement due to increment of pressure of 55 kN/m2 at the middle of clay layer. Use the following data: Initial void ratio 1.2 Compression index = 0.27 Swelling index 0.06

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 9.17P

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The compression diagram for a precompressed clay indicates that it had been compressed under a pressure of 240 kN/m2. The compression index is 0.9; its void ratio under a pressure of 180 kN/m2 is 1.5. Estimate the void ratio if the pressure is increased to 360 kN/m2. a. 0.70 b. 1.246 c. 1.46 d. 1.34
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For a given consolidated clay: Gs= 2.71; LL= 45; In situ average effective overburden pressure = 120 kPa; In situ void ratio= 0.80 ; Thickness of clay layer = 4m ; average increase of effective stress on clay layer= 40 kPa; Effective pressure at the mid-height of clay layer= 60 kPa; Swell Index (Cs)= 1/5 Cc. Compute the primary consolidation settlement in mm. a.87.64 b.49 c.92.9 d.100.5
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For a given consolidated clay: Gs= 2.71; LL= 45; In situ average effective overburden pressure = 120 kPa; In situ void ratio= 0.80 ; Thickness of clay layer = 4m ; average increase of effective stress on clay layer= 40 kPa; Effective pressure at the mid-height of clay layer= 60 kPa; Swell Index (Cs)= 1/5 Cc. Compute the pre-consolidation pressure in kPa. a. 92.9 b. 49 c. 87.64 d. 100.5
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