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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
A 100-psi pressure is applied through a circular area 12 in. in diameter on a granular half- space, as shown in Figure P2.2. The half-space has mass unit weight its 110 pcf, coefficient of earth pressure at rest is 0.6, its Poisson ratio is 0.35, and its elastic modulus varies with the sum of normal stresses according to the equation shown in the figure. Assuming that the Boussinesq stress distribution is valid and that the stresses at a point 12 in. below the center of the loaded area are used to compute the elastic modulus, determine the maximum surface displacement . Please show the steps. [Answer: 0.054 in.]

FIGURE P2.2 110 pcf Ko- 0.6 0.35 12 in. 100 psi Wo 12 in Search d 0.55 E 30000
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