Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 3, Problem 3.5P
(a)
To determine
Calculate the void ratio of sample A.
(b)
To determine
Calculate the degree of saturation of sample A.
(c)
To determine
Calculate the water content of sample B.
(d)
To determine
Calculate the total weight of B.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
The total volume of a soil specimen is 80,000 mm^3 and has a mass of 152 g. the dry mass of the specimen is 122g, and the density of the soil is 2.65 Mg/m^3. Compute the following index properties: (a) e; (b) n; (c) S; (d) ρt; and (e) ρd. Include phase diagrams.
1. A 1 m³ sample of moist soil weights 1800 kg. The water content is 10%. Assume p, is
2700 kg/m³. With this information, fill in all the blanks on the phase diagram. After your
phase diagram is complete, compute void ratio, porosity and dry density. Show all your
calculations.
V
4
V
Air
Water
Soil
A
M
+
M
A sample of clay taken from a natural stratum was found to be partially saturated and when tested in the laboratory gave the following results. Compute the degree of saturation.
Specific gravity of soil particles = 2.6; wet weight of sample = 2.50 N; dry weight of sample = 2.10 N; and volume of sample = 150 cm3.
Chapter 3 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
Ch. 3 - Prob. 3.1PCh. 3 - Prob. 3.2PCh. 3 - Prob. 3.3PCh. 3 - Prob. 3.4PCh. 3 - Prob. 3.5PCh. 3 - Prob. 3.6PCh. 3 - Prob. 3.7PCh. 3 - Prob. 3.8PCh. 3 - Prob. 3.9PCh. 3 - Prob. 3.10P
Ch. 3 - Prob. 3.11PCh. 3 - Prob. 3.12PCh. 3 - Prob. 3.13PCh. 3 - Prob. 3.14PCh. 3 - Prob. 3.15PCh. 3 - Prob. 3.16PCh. 3 - Prob. 3.17PCh. 3 - Prob. 3.18PCh. 3 - Prob. 3.19PCh. 3 - Prob. 3.20PCh. 3 - Prob. 3.21PCh. 3 - Prob. 3.22PCh. 3 - Prob. 3.23PCh. 3 - Prob. 3.24PCh. 3 - For a given sandy soil, emax = 0.75 and emin =...Ch. 3 - For a given sandy soil, the maximum and minimum...Ch. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - Prob. 3.29PCh. 3 - Prob. 3.1CTPCh. 3 - Prob. 3.2CTPCh. 3 - Prob. 3.3CTP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- The coefficient of permeability for a fine-grained soil is determined in a laboratory by use of a falling-head test. Test conditions and results are as indicated below. Determine the coefficient of permeability, then indicate the probable soil classification. Length of soil sample = 150 mm Cross-sectional area of sample = 1,140 mm2 Cross-sectional area of standpipe = 200 mm2 At the start of the test, the water level in the supply standpipe is 1 m above the top of the permeameter. One hour after start, the water level in the supply standpipe is 0.95 m above the top of the permeameter.arrow_forwardProblem 4. A 1-m³ sample of moist soil weighs 2000 kg. The water content is 10%. Assume is 2.70 Mg/m³. With this information, fill in all blanks in the phase diagram below. V₁ = V₂ Vw Air Water- Soil M₂ Ms M₁ =arrow_forward1. From the following data of a soil sample: Sample size 3.81 cm dia. x 7.62 cm ht. Wet weight = 1.668 N Oven-dry weight = 1.400 N Specific gravity = 2.70 Detemine the water content (%), dry unit weight (kN/m3), bulk unit weight (kN/m3), void ratio, and the degree of saturation (%).arrow_forward
- 1. (i) A dry soil has a void ratio of 0.65 and its grain specific gravity is = 2.80. What is its unit weight?(ii) Water is added to the sample so that its degree of saturation is 60% without any change in void ratio. Determine the water content and unit weight.(iii) The sample is next placed below water. Determine the true unit weight (not considering buoyancy) if the degree of saturation is 95% and 100% respectively. 2. A sample of saturated soil has a water content of 35%. The specific gravity of solids is 2.65. Determine its void ratio, porosity, saturated unit weight and dry unit weight 3. For a given soil, the void ratio e, water content w, and specific gravity Gs are found to be 0.50, 15%, and 2.65, respectively. Find: (a) Total unit weight of the soil γt (b) Degree of saturation S (c) Dry unit weight γd if the water in the void is removed 4. A shrinkage limit test for a saturated specimen had the initial volume Vi = 21.35 cm3 and initial weight Wi = 37 gf (…arrow_forwardCalculate the CEC (m.e./100g soil) using the following given miliequivalent weights obtained from a 25g soil sample (a. Ca++= 2.23 m.e; b. Mg++=1.32 m.e.; c. Na+= 1.98 m.e.; d. K+= 1.87 m.e.; e. H+= 1.27 m.e.; f. Al+++= 0.11 m.e.; g. NH4+= 2.3 m.e.; h. NO3-= 1.5 m.e.arrow_forwardLet us assume that a soil sample taken in the field is taken and it must be identified by the SUCS Method and AASHTO Method. Moisture content = 5.75% Limit liquid = 53.5 Plastic limit = 31.6 Granulometry Sieve % Pass No. 4 100 # 40 68 # 200 54.3 Do you select the best answer? a) Inorganic silt and sand, with low plasticity b) Inorganic clay with low plasticity c) Clay silt, traces of gravel, dark Brownarrow_forward
- Question 3 4 pts Assuming the groundwater table is at ground surface and the soil bulk unit weight is 20KN/m3. At 2m depth below ground level. The pore water pressure is approximately: 200 kPa O 9.8 kPa O 98 kPa O 19.6 kPa Question 4 4 pts A soil sample is placed in a 1m long and 10cm diameter tube. A constant supply of water is allowed to flow from inlet to outlet. The total water head at the inlet is 2m and the total water head at the outlet is 1m. The hydraulic conductivity is 0.001 cm/s. Which of the following answer is correct? O The flow velocity is 25 cm/s O The hydraulic gradient in the tube is 2 O The flow velocity is 0.001 cm/s O The hydraulic gradient in the tube is 0.001arrow_forwardPROBLEM 5: Laboratory test shows that a soil sample has emax = 0.85 and emin = 0.55. If the porosity of the sample is 43%, compute the density index. a. 26% C. 45% b. 32% d. 28%arrow_forward2. The coefficient of permeability for a fine-grained soil is determined in the laboratory by use of a falling head test. Test conditions and results are as indicated below. Determine the coefficient of permeability, then indicate the probable soil classification. - Length of soil sample = 150mm - Cross-sectional area of standpipe = 200mm2 - Cross-sectional area of soil sample = 1,140mm2 - At the start of the test, the water level in the supply standpipe is 0.95m above the top of the permeameter. - %3D Draw the sketch. Reference Table for Soil Classification Soil Type k, Coefficient of Permeability (mm/sec) Clean Gravel 10 - 100 Clean Sand and Gravel mixture none Fine sand.silt 10-2 to 10-4 Sand Silt Clay 10-3 to 10-6 Glacial < 10-6arrow_forward
- A SOIL SAMPLE WAS TAKEN FROM A SITE AND WAS PLACED IN A CUBICAL CONTAINER WITH ONE SIDE EQUAL TO 0.1m. THE NET WEIGHT OF THE SOIL IS FOUND OUT TO BE 2kN. AFTER OVEN DRYING, THE WEIGHT WAS REDUCED TO 53%. WHAT IS THE UNIT WEIGHT OF THE SOIL AFTER DRYING? * Your answer A SATURATED SOIL HAS VOID RATIO EQUAL TO 0.65 AND sg = 2.9. WHAT IS THE SUBMERGED UNIT WEIGHT OF THE SOIL? * Your answer THE WEIGHT OF THE VOIDS OF ON SITE SOIL WAS MEASURED AND FOUND OUT TO BE 1 kN. AFTER DRYING, THE WEIGHT OF THE SOLID WAS FOUND TO BE 1 kN. IF THE VOLUME OF THE SOIL IS 0.099 m3, WHAT IS THE NATURAL UNIT WEIGHT OF THE SOIL? * Your answerarrow_forwardA soil sample has a volume of 5200 cm3 and mass of 10.4 kg. water content of the soil is w = 12%. Determine(a) unit weight, (b) dry unit weight, (c) saturated unit weight, (d) void ratio, (e) porosity, and (f) degree ofsaturation (assume Gs = 2.7).arrow_forwardSand cone equipment is used to perform a field density test on a compacted earth fill. • Sil sample dug from the test hole = 20.60 N • Dry weight of soil sample = 17.92 N Ottawa sand used to fill the hole weighs 16.05 N and is known to have a density of 15.74 kN/m³. Which of the following gives the water content of the tested soil? O a. 15.45% O b. 12.08% O . 11.12% d. 14.96% e. 10.94% Clear my choicearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Geotechnical Engineering (MindTap C...Civil EngineeringISBN:9781305970939Author:Braja M. Das, Khaled SobhanPublisher:Cengage LearningFundamentals of Geotechnical Engineering (MindTap...Civil EngineeringISBN:9781305635180Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage Learning
Principles of Geotechnical Engineering (MindTap C...
Civil Engineering
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Cengage Learning
Fundamentals of Geotechnical Engineering (MindTap...
Civil Engineering
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Cengage Learning