Answered: The soil profile at a site for a…

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter2: Geotechnical Properties Of Soil

Section: Chapter Questions

Problem 2.10P: The soil profile at a site consists of 10 m of gravelly sand underlain by a soft clay layer. The...

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Transcribed Image Text:The soil profile at a site for a proposed office building consists of a layer of fine sand 10.4 m thick above a layer of soft clay 2 m thick. Below the soft clay is a deposit of coarse sand. The groundwater table was observed at 3 m below ground level. The void ratio of the sand is 0.76. The building will impose a vertical stress increase of 140 kPa at the middle of the clay layer and the clay is overconsolidated with an OCR = 2.5 and a water content of 38%. Estimate the primary consolidation settlement of the clay. Assume the soil above the water table to be saturated, C=0.3, C; = 0.05 and G,=2.7. 3 m GWT Fine Sand 7.4 m Clay 2 m Coarse Sand 21 mm 15 mm 18 mm O 12 mm

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