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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
For the initial case in Problem 7-17, compute the head of water required at the top of the silty clay layer to cause a quick condition.
Problem 7-17
A soil profile consists of 5 m of compacted sandy clay followed by 5 m of medium dense sand. Below the sand is a layer of compressiblesilty clay 20 m thick. The initial ground water table is located at the bottom of the first layer (at 5 m below the ground surface). The densities are 2.05 Mg/m3 (p), 1.94 mg/m' (p.d. and 1.22 Mg/m' (p') for the three layers, respectively. Compute the effective stress at a point at middepth in the compressible clay layer. Then, assuming that the medium dense sand remains saturated, compute the effective stress in the clay layer at midpoint again, when the pound water table drops S m to the top of the silty clay layer. Continent on the difference in effective stress.
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