- The Soil Profile And Loading Situation From Previous Homework Is Shown Below An Undisturbed Sample Was Taken At A Depth 1 (122.24 KiB) Viewed 25 times
do not copy previous wrong answers, thanks.
The soil profile and loading situation from previous homework is shown below. An undisturbed sample was taken at a depth of 10 ft below the original ground surface before the fill was placed. 1. Initial Condition before fill placement 2. Final condition after fill placement Ell soil (to be placed) 51 Original ground surface 10 ft Original ground surface 10 ft Yfill = 130 pcf OCR=1.0 W = 53% Gs = 2.67 Ysat = 105.8 pcf Double drainage Cv = 20 ft/yr eo = 1.4 et (after consolidation under fill load) = = 1.17 CL 20 ft CL 20 ft Not to scale Not to scale A series of unconsolidated undrained (UU) triaxial tests were then conducted on three specimens of the soil taken from the undisturbed sample. The following results were obtained at failure. Test No. 03_(psf) 01-03_(psf) 1 983 1,200 2 2,984 1,155 3 6,018 1,179 Part 1. Plot the Mohr circles at failure and interpret these data to obtain the undrained strength of the soil, Su. Part 2. On your Mohr diagram from Part 1, qualitatively show the expected position of the failure envelope after the CL soil is fully consolidated under the fill load.