Assume a buried stratum of clay 1.83 m thick will be subjected to a stress increase of 44.6 kPa at the center of the clay. The magnitude of the pre-construction soil overburden pressure P0= 48 kPa at the center of the clay layer. A laboratory compression test indicates that the clay has a pre-consolidation pressure of 72 kPa. The compression index is 0.30 and the value of the swell index is 0.05. The void ratio of clay is 1.50. a. Compute the settlement due to primary compression of clay. b. If full consolidation settlement will require approximately 8 years, compute the settlement due to secondary compression of clay over a period of 20-year time span. Assume secondary compression index 0.008. c. Estimate the total settlement to be expected over a 20-year time span considering the effect of secondary compression Note: Draw Free Body- Diagram, Use 3 decimal Places Do not copy the one in chegg, it is incomplete Topic: Compressibility of Soil (Soil Mechanics)
Assume a buried stratum of clay 1.83 m thick will be subjected to a stress increase of 44.6 kPa at the
center of the clay. The magnitude of the pre-construction soil overburden pressure P0= 48 kPa at the center of the clay layer. A laboratory compression test indicates that the clay has a pre-consolidation pressure of 72 kPa. The compression index is 0.30 and the value of the swell index is 0.05. The void ratio of clay is 1.50.
a. Compute the settlement due to primary compression of clay.
b. If full consolidation settlement will require approximately 8 years, compute the settlement due to secondary
compression of clay over a period of 20-year time span. Assume secondary compression index 0.008.
c. Estimate the total settlement to be expected over a 20-year time span considering the effect of secondary
compression
Note: Draw Free Body- Diagram,
Use 3 decimal Places
Do not copy the one in chegg, it is incomplete
Topic: Compressibility of Soil (Soil
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