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In a soil investigation for a construction project, two soil types were identified with the following...

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Civil Engineering

In a soil investigation for a construction project, two soiltypes were identified with the following parameters (g = 9.81m/s2):

Soil Type

Depth below ground level (m)

Unit weights (kN/m3)

Other parameters

Soil 1 (sand)

6.5

g = 17 and gsat = 17.5

E =15000 kN/m2

Soil 2 (overconsolidated clay)

11.5

gsat = 20

e0=0.69, Cc=0.25, Cs=0.05

If the ground water level is at 2.5 m below the ground level,and the initial void ratio of the overconsolidated clay layer is0.69, find the expected settlement in the clay layer only due to aproposed foundation that should imposes a pressure of 60kN/m2 on the mid-depth of the clay layer. Theoverconsolidation pressure is 125 kN/m2. What is the thetotal settlement due to both the sand and clay layers (to themid-height of the clay layer)?

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