Assignment3 - CE 728 Geotechnical Earthquake Engineering...

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Unformatted text preview: CE 728 Geotechnical Earthquake Engineering Department of Civil Engineering Middle East Technical University, Ankara,Turkey Assoc. Prof. Dr. K. Önder Çetin ASSIGNMENT 3 Dynamic Soil Properties 1. Plot the estimated modulus degradation vs. shear strain curve for sands under mean effective stress range of 1-3 ksc (1-3 atm) and the average for gravels as recommended by Seed et al. (1984) on the Vucetic and Dobry (1991) modulus degradation plot. Also plot the mean estimated damping vs. shear strain relationship for sands under mean effective stress range of 1-3 ksc (1-3 atm) on the Vucetic and Dobry (1991) damping vs. shear strain plots. On the Vucetic and Dobry (1991) damping vs. shear strain plot, try to estimate the damping vs. shear strain behavior of gravels. 2. Consider a horizontal soil layer of 2 m in thickness, which occurs at some depth below the surface of a site. The vertical effective stress at this depth is approximated as 1.6 atm. Subsurface characterization studies including borings, approximated as 1....
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This note was uploaded on 05/09/2008 for the course CIVIL ENGI CE 728 taught by Professor Cetin during the Fall '06 term at Middle East Technical University.

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Assignment3 - CE 728 Geotechnical Earthquake Engineering...

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