3.14 For a sandy soil, emax = 0.86, emin = 0.43, and G, = 2.66. What is the void ra- tio at D, = 56%. Determine the moist unit weight of the soil when w = 7% (in lb/ft³) 3.16 A loose, uncompacted sand fill is 2 m in depth and has a relative density of 40%. Laboratory tests indicate that the minimum and maximum void ratios of the sand are 0.46 and 0.90, respectively. The specific gravity of solids of the sand is 2.65. a. What is the dry unit weight of the sand? b. If the sand is compacted to a relative density of 75%, what is the decrease in thickness of the 2 m fill?
3.14 For a sandy soil, emax = 0.86, emin = 0.43, and G, = 2.66. What is the void ra- tio at D, = 56%. Determine the moist unit weight of the soil when w = 7% (in lb/ft³) 3.16 A loose, uncompacted sand fill is 2 m in depth and has a relative density of 40%. Laboratory tests indicate that the minimum and maximum void ratios of the sand are 0.46 and 0.90, respectively. The specific gravity of solids of the sand is 2.65. a. What is the dry unit weight of the sand? b. If the sand is compacted to a relative density of 75%, what is the decrease in thickness of the 2 m fill?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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3.14 and 3.16 please

Transcribed Image Text:3.14 For a sandy soil, emax = 0.86, emin = 0.43, and G, = 2.66. What is the void ra-
tio at D, = 56%. Determine the moist unit weight of the soil when w = 7%
(in lb/ft³)
3.16 A loose, uncompacted sand fill is 2 m in depth and has a relative density of
40%. Laboratory tests indicate that the minimum and maximum void ratios
of the sand are 0.46 and 0.90, respectively. The specific gravity of solids of the
sand is 2.65.
a. What is the dry unit weight of the sand?
b. If the sand is compacted to a relative density of 75%, what is the decrease
in thickness of the 2 m fill?
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