Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 3, Problem 3.11P
To determine
Find the weight of water, in kN.
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2.
The moist weight of 5.56 × 10-3 m³ of a soil is 120.3 × 10-³ kN. The moisture content and the specific gravity of the soil solids are determined in the laboratory to be 10 % and 2.6, respectively. Calculate the following:
a. Moist unit weight.
(Enter your answer to three significant figures.)
|kN/m³
b. Dry unit weight.
(Enter your answer to three significant figures.)
|kN/m³
c. Void ratio.
(Enter your answer to three significant figures.)
e =
d. Porosity.
(Enter your answer to three significant figures.)
n =
e. Degree of saturation.
(Enter your answer to three significant figures.)
S =
|%
f. Volume occupied by water.
(Enter your answer to three significant figures.)
Vu =
dm³
11. Situation 11 - The moist unit weight and degree of saturation of a soil are given in the following table.
a. Determine the unit weight of the soil in kN/m3 if s = 13%. Round off to two decimal places.
bDetermine the unit weight of the soil in kN/m3 if s = 69%. Round off to two decimal places.
c. Determine the saturated unit weight in kN/m3. Round off to two decimal places.
1: A sample of soil is obtained from a test pit is one cubic foot ( 1ft³) and weighs 140 lb. The entire sample is dried in an oven and found to weigh 125 lb. Calculate the following:
B. Moist Unit Weight (pcf)
Chapter 3 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
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- Question 2 A soil has a water content of 25 %, a void ratio of 0.7, and a specific gravity of solids of 2.7. (a) On the phase diagram shown below, choose the total volume to be equal to one, and fill up all other quantities. Use Kg for mass and m³ for volume. Volume (m³) V₁ Vy Vw Vs AIR WATER SOLIDS Phase Diagram Mass (Kg) Mw X Ms (b) Use the phase diagram to calculate the following quantities. (i) total density (ii) dry density (iii) degree of saturation (iv) saturated density (assume no volume change) M₁arrow_forwardA saturated soil has the following characteristics: Initial mass = 40.91 grams Final mass = 28.79 grams Initial Volume = 23 cm3 Final Volume = 15 cm3 Determine the specific gravity of soil solids. Round off to two decimal places.arrow_forwardula 1A C e Mana The total volume of a soil specimen is 80,000 mm3 and it weighs 150 grams. The dry weight of the specimen is 130 grams and the density of the soil solids is 2680 Kg/m3. Find the POROSITY OF SOIL( n) knowing that pwater3D1000kg/m3 Select one: a. 0.271 b. 0.393 c. 0.170 d. 0.111 Next pa Jump to... Announcementarrow_forward
- The moist weight of 0.2 ft³ of a soil is 23 lb. The moisture content and the specific gravity of soil solids are determined in the laboratory to be 11% and 2.7, respectively. Calculate the following a. Moist unit weight (lb/ft³) b. Dry unit weight (lb/ft³) c. Void Ratioarrow_forwardA WET OF SOIL SAMPLE HAS A VOLUME OF 4.85 x 10^-4 m3 AND WEIGHS 8.5N. AFTER OVEN DRYING, THE WEIGHT REDUCES TO 7.5N. IF sg = 2.7DETERMINE THE UNIT WEIGHT. DETERMINE THE MOISTURE CONTENT. DETERMINE THE DEGREE OF SATURATIONAnswer in 4 decimal places with unitarrow_forward1. The saturated unit weight of a soil is 13 kN /m° at a moisture content of 26 %. The unit weight of water is Y, = 9.81 kN /m³. a. Determine the dry unit weight. (Enter your answer to three significant figures.) Ya kN/m³ b. Determine the specific gravity of soil solids, G,. (Enter your answer to three significant figures.)arrow_forward
- The moist unit weights and degrees of saturation of a soil are given in the following table: Unit Weight (pcf) 119.04 123.86 S (%) 65 85 Determine the specific gravity of the soil solids. Determine the porosity of the soil in percent. Determine the void ratio of the soil in percent. Please answer this asap. For upvote. Thank you very mucharrow_forwardProblem One: In its natural state, a moist soil has a volume of 9.34x10^-3 m3 and weighs 177.6 10^-3 kN. The oven-dried weight of the soil is 153.6 x10-3 kN. if Gs = 6.67. Calculate the following. a- Determine Moisture content (%) b-calculate Moist unit weight (kN/m3) c- Dry unit weight (kN/m3)arrow_forwardThe moist unit weights and degrees of saturation of a soil are given in the table. y (kN/m3) S(%) 16.62 50 17.71 75 Determine: a. e b. Gs Show handwritten solutions.arrow_forward
- 13. A soil has a specific gravity of solids (Gs) of 2.65, a water content of 13% and a void ratio of 0.8. a. draw the phase diagram and fill it in with the numerical values b. determine the porosity, saturation, and the dry, saturated, and submerged unit weights in lb/ft³. using Gs= Ms mearrow_forwardThe porosity of a soil is 0.35. Given G₁ = 2.70. Calculate: a. Saturated unit weight. (Enter your answer to three significant figures.) Ysat kN/m³ b. Moisture content when moist unit weight = 17.5 kN/m³ (Enter your answer to three significant figures.) W %arrow_forward1: A sample of soil is obtained from a test pit is one cubic foot ( 1ft³) and weighs 140 lb. The entire sample is dried in an oven and found to weigh 125 lb. Calculate the following: A. water content(%) B. Moist Unit Weight (pcf) C. Dry Unit Weight (pcf)arrow_forward
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