A dry soil sample has the total mass (kg) shown in the table below. Use the data provided to complete the MVR table and determine the engineering parameters listed below. Write all answers for the mass/volume table to three decimal places and write all the answers for the engineering parameters (w, n, PT.PD. YT.& YD) as real numbers only (i.e. no %) to two decimal places. Be consistent with the units provided but do not include the units in your answer. VOLUME Va = Blank 1 m³ Vw = Blank 2 m³ Vs = Blank 4 m³ VT = Blank 6 m³ void ratio = 0.45 water content = Blank 7 porosity = Blank 8 Total density (kg/m3) = Blank 9 Dry density (kg/m3) = Blank 10 Total unit weight (kN/m3) = Blank 11 Dry unit weight (kN/m3) = Blank 12 AIR WATER p=1000 kg/m³ SOLIDS R.D. = 2.70 MASS Ma = 0 kg Mw = Blank 3 kg Ms = Blank 5 kg MT= 452.650 kg

A dry soil sample has the total mass (kg) shown in the table below. Use the data provided to complete the MVR table and determine the engineering parameters listed below. Write all answers for the mass/volume table to three decimal places and write all the answers for the engineering parameters (w, n, PT.PD. YT.& YD) as real numbers only (i.e. no %) to two decimal places. Be consistent with the units provided but do not include the units in your answer. VOLUME Va = Blank 1 m³ Vw = Blank 2 m³ Vs = Blank 4 m³ VT = Blank 6 m³ void ratio = 0.45 water content = Blank 7 porosity = Blank 8 Total density (kg/m3) = Blank 9 Dry density (kg/m3) = Blank 10 Total unit weight (kN/m3) = Blank 11 Dry unit weight (kN/m3) = Blank 12 AIR WATER p=1000 kg/m³ SOLIDS R.D. = 2.70 MASS Ma = 0 kg Mw = Blank 3 kg Ms = Blank 5 kg MT= 452.650 kg

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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2. The sieve analysis data for a granular soil are given below. % passing 19 mm sieve =100 % passing 4.75 mm (4 sieve) = 61 % passing 2 mm = 45 % passing 0.075 mm (200 sieve) = 16 % passing 0.06 mm (4 sieve) = 13 % passing 0.05 mm ( sieve) = 8 % passing 0.002 mm (4 sieve) = 5 What are the percentages of gravels, sands and fines within this soil, based on the Unified Soil Classification System (USCS), AASHTO, USDA and MIT Standards?,
The following are the results of a sieve and hydrometer analysis. Analysis Sieve number/grain size Percent finer Sieve 40 100 80 97 170 92 200 90 Hydrometer 0.04 mm 74 0.015 mm 42 0.008 mm 27 0.004 mm 17 0.002 mm 11 a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt and clay according to the MIT system. c. Repeat Part b according to the USDA system. d. Repeat Part b according to the AASHTO system.
4. The table below shows the laboratory results of the sample. Determine the soil classification using Unified Soil Classification System (USC). Sieve No. Opening (mm) Percent Passing 4 4.760 90 8 2.380 64 10 2.000 58 20 0.840 35 40 0.420 22 60 0.250 15 100 0.149 0.074 10 200 4 D10 = 0.15mm, D30 = 0.65mm, D60 = 2.20mm %3D
5. The results of a particle size analysis of a soil are given in the following table. The Atterberg limit tests yielded LL=62, PL = 20. Sieve Opening (mm) Percent Coarser by Weight Sieve No. 4.75 5.1 10 2.00 10.0 20 0.85 0.425 40.7 40 70.2 84.8 90.5 60 0.25 100 0.15 200 Pan 0.075 100 a) Draw the gradation curve for this soil b) Determine the uniformity coefficient and the coefficient of curvature c) Classify the soil using USCS and ASSHTO d) Rate this soil as a subgrade for highway construction
Q3: Classify the soil sample according to the following figure using the AASHTO system and state whether this soil is suitable in its natural state for use as a subbase material or not. CLAY SIZE SILT SIZE SAND SIZE GRAVEL 100 90 80 LL = 37, PL = 10 60 50 40 30 20 10 0.075 mm 0.0001 0.001 0.01 0.1 1 10 Grain Size (mm) Percent Passing (by weight)
The grain-size characteristics of soil re given in the following table. Use Table 2.3 for the analysis. Size (mm) Percent finer 0.425 100 0.1 79 0.04 57 0.02 48 0.01 40 0.002 35 0.001 33 Table 2.3 Particle-Size Classifications Grain size (mm) Name of organization Gravel Sand Silt Clay Massachusetts Institute of Technology (MIT) >2 2 to 0.06 0.06 to 0.002 2 <0.002 76.2 to 2 2 to 0.075 0.075 to 0.002 <0.002 Fines (i.e., silts and clays) <0.075 76.2 to 4.75 4.75 to 0.075 Note: Sieve openings of 4.75 mm are found on a U.S. No. 4 sieve; 2-mm openings on a U.S. No. 10 sieve; 0.075-mm openings on a U.S. No. 200 sieve. See Table 2.5. i.) What is the percentages of gravel, sand, silt and clay according to the MIT system. a.) Gravel – 0%; Sand – 38%; Silt – 30%; Clay – 35% b.) Gravel – 0%; Sand – 37%; Silt – 30%; Clay – 35% c.) Gravel – 0%; Sand – 36%; Silt – 30%; Clay – 35% d.) Gravel – 0%; Sand – 35%; Silt – 30%; Clay – 35% e.) None of the above
The grain-size characteristics of soil re given in the following table. Use Table 2.3 for the analysis. Size (mm) Percent finer 0.425 100 0.1 79 0.04 57 0.02 48 0.01 40 0.002 35 0.001 33 Table 2.3 Particle-Size Classifications Grain size (mm) Name of organization Gravel Sand Silt Clay Massachusetts Institute of Technology (MIT) >2 2 to 0.06 0.06 to 0.002 2 <0.002 76.2 to 2 2 to 0.075 0.075 to 0.002 <0.002 Fines (i.e., silts and clays) <0.075 76.2 to 4.75 4.75 to 0.075 Note: Sieve openings of 4.75 mm are found on a U.S. No. 4 sieve; 2-mm openings on a U.S. No. 10 sieve; 0.075-mm openings on a U.S. No. 200 sieve. See Table 2.5. What is the percentages of gravel, sand, silt and clay according to the USDA system a.) Gravel – 0%; Sand – 38%; Silt – 26%; Clay – 35% b.) Gravel – 0%; Sand – 38%; Silt – 27%; Clay – 33% c.) Gravel – 0%; Sand – 38%; Silt – 26%; Clay – 34% d.) Gravel – 0%; Sand – 38%; Silt – 27%; Clay – 35% e.) None of the above
The following are the results of a sieve and hydrometer analysis: Sieve number/ Percent finer than Analysis grain size Sieve 20 100 30 96 40 90 60 76 80 65 200 34 Hydrometer 0.05 mm 27 0.03 mm 19 0.015 mm 0.006 mm 7 0.004 mm 0.0015 mm 5 a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt, and clay according to the MIT system. c. Determine the percentages of gravel, sand, silt, and clay according to the USDA system. d. Determine the percentages of gravel, sand, silt, and clay according to the AASHTO system.
4. The results of liquid limit testing on 3 samples of a soil are shown below. sample 1. 2 3 mass (g) 20 mass mass (g) emply can (M.) wet soil + can (M.) dry soil + can (M) moisture content: w (%) Number of cranks 20 20 35 35 28.82 36 28.15 30.38 4 10 30 Calculate the moisture content of cach of the 3 samples. Show your calculations below and then put your answers in the chart above. M,- M, м, - м, x100%
76 .ll Q3.png The data from standard and modified proctor test on a soil sample (density of solids: 2680 kg/m3 ) are provided below: Standard proctor test Modified proctor test Dry density (kg/m) 1691 Dry density (kg/m') 1873 Water content (%) Water content (%) 9.3 9.3 1715 11,8 1910 12.8 1755 14.3 1803 15.5 1747 17.6 1699 18.7 1685 20.8 1641 21.1 1619 23 a) Plot the compaction curves (both standard and modified in one graph). b) Establish the maximum dry density and optimum water content for each test.
Q 05: For a given soil, the following are given in Table: Specific Gravity Gs, bulk unit weight (CLO 3) Y), and moisture content (w). Use data from the table according to your registration number. (You can solve answer on paper and paste neat clear image in the answer). Student Registration Number Gs Y (kN/m3) moisture content (w) % 014 2.6 17 16 043 2.65 17.4 12 046 2.70 17.8 22 102 2.72 17.2 20 Determine: a. Dry unit weight b. Void ratio c. Porosity d. Degree of saturation Answer:
40 38 36 34 32 30 28 26 24 22 20 10 100 Number of Blows (N) Using the graph, what are the values for: Liquid Limit • Plastic Limit (Assuming PL1=22.4% and PL2=23.0%) • Plasticity Index And what is the USCS soil classification? Water Content (%)