Fine sand Clay Coarse sand 3m 7.4m 2m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
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, normally consolidated 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. Above the groundwater table,
saturation is 50%. The void ratio of the fine sand is 0.76 and the water content of the clay is 43%.
The building will impose a vertical stress increase of 140 kPa at the middle of the clay layer.
Estimate the primary consolidation settlement of the clay, Cc = 0.3, and Gs = 2.7.
Transcribed Image Text:Fine sand
Clay
Coarse sand
3m
7.4m
2m
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