Practice Question: Foundation settlement

NCEES Civil PE Specification Soil mechanics: Foundation settlement


For each of the two foundation options shown, find the ratio of long-term settlement \(\frac{S_{c1}}{S_{c2}}\) for the clay layers after 2 years of loading caused by normal consolidation settlement of each layer.

Assume the following:
•    Both footings have the same load.
•    Consider long term settlement only in the normally consolidated clay layers.
•    \(p_f = 2 p_0\) (Final pressure = 2 x Initial pressure for both footings at center of clay layer).

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