Situation 2. A granular soil located in a borrow pit is found to have an in place dry density of 1895 kg/m^3. In the laboratory, values of dry maximum density and minimum density are determined as 2200 kg/m^3 and 1440 kg/m^3, respectively. a. Compute the relative density of the soil in the borrow pit. 69.5 b. Compute the void ratio of the soil in the natural condition if the maximum and minimum densities indicate void ratio ratios of 0.28 at the max density and 0.92 at minimum density. 4752 c. Compute the specific gravity of this soil. 2.8

Situation 2. A granular soil located in a borrow pit is found to have an in place dry density of 1895 kg/m^3. In the laboratory, values of dry maximum density and minimum density are determined as 2200 kg/m^3 and 1440 kg/m^3, respectively. a. Compute the relative density of the soil in the borrow pit. 69.5 b. Compute the void ratio of the soil in the natural condition if the maximum and minimum densities indicate void ratio ratios of 0.28 at the max density and 0.92 at minimum density. 4752 c. Compute the specific gravity of this soil. 2.8

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Situation 2.
A granular soil located in a borrow pit is
found to have an in place dry density of
1895 kg/m^3. In the laboratory, values of
dry maximum density and minimum density
are determined as 2200 kg/m^3 and 1440
kg/m^3, respectively.
a. Compute the relative density of the soil in
the borrow pit. 69.5
b. Compute the void ratio of the soil in the
natural condition if the maximum and
minimum densities indicate void ratio ratios
of 0.28 at the max density and 0.92 at
minimum density. 4752
c. Compute the specific gravity of this soil.
2.8

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EXTRA PROBLEMS: PROBLEM 12: Laboratory tests administered to a certain soil yield the maximum and mmimum possible void ratios of 0.85 and 0.55 respectively. Also, porosity and specific gravity of soil solids were found to be 40% and 2.65 in succession. What is its dry unit weight? a. 17.32 kN/m3 b. 15.60 kN/m3 c. 17.90 kN/m3 d. 18.20 kN/m3
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PROBLEM 1 The following are given for a specimen of soil: M = 300 g, Msolid = 170 g, Gs = 2.72 and S = 70%. Determine: a. Total Volume of the soil sample. b. Porosity of the specimen. C. Volume of water to be added to make the soil fully saturated.
8. A sample of soil has a water content w= 14.7%, and a cube of dimensions 10 cm x 10 cm × 10 cm weighs 18.4 N. The grain specific gravity Gs = 2.72. Calculate the unit weight, the void ratio and the degree of saturation. What would be the unit weight and the water content if the soil had the same void ratio, but was saturated? What would be the unit weight if the soil had a water content of zero?
9. The field unit weight of the soil sample is 1960 kg/m³, and the unit weight of the soil particle is 2700 kg/m³. If emax=0.69 and emin = 0.44. a) Compute the dry unit weight if the water content is 11% b) Compute the void ratio of the soil sample. c) Compute the relative density of the soil sample.
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2. A soil sample has a unit weight of 16 kN/m^3 and a saturation of 40%. When the saturation is increased to 90%, its unit weight raises to 120 kN/m^3. Calculate the void ratio and the specific gravity of the soil.
An undisturbed soil sample was taken from the middle of a clay layer (i.e., 1.5 m below GL), as shown in figure. The water table was at the top of clay layer. Laboratory test results are as follows: Natural water content of clay : 25% Precdonsilidation pressure of clay : 60 kPa Compression index of clay : 0.50 Recompression index of clay : 0.05 Specific gravity of clay : 2.70 Bulk unit weight of sand : 17 kN/m3 A compacted fill of 2.5 m height with unit weight of 20 kN/m3 is placed at the ground level. 1 m Sand GWT 1 m Clay Hard stratum Assuming unit weight of water as 10 kN/m³, the ultimate consolidation settlemnet (expressed in mm) of the clay layer is
A saturated soil sample, weighing 178 g has a volume of 96 cc. If the specific gravity of soil solids be 2.67, determine the void ratio in percent. a.95.5 b.18.89 c.48.85 d.35.8