Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Textbook Question
Chapter 4, Problem 4.6CTP
For soils that are classified by the following USCS symbols, what would be the most likely AASHTO symbols? (Reference: Liu, 1970)
Gravels: GW, GP, GM, GC
Sands: SW, SP, SM, SC
Fines: ML, CL, MH, CH
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The properties of seven different clayey soils are shown below. Investigate the relationship
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0.36
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100-900
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50-70
40-55
150-250
200-250
18
17
41
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36
38
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0.3-0.5
0.5-1.2
1.5-7.0
0.1-0.2
0.4-0.6
0.4-1.3
0.4-1.3
c. Sensitivity refers to the…
The particle size analyses for four clay soils particles conducted ingeotechnic laboratory are shown in Table Q1(a)(i) and Table Q1(a)(ii).Using to the American Society for Testing and Materials (ASTM) methodanalysis;
(i) With the plot of graph, find the value of Cu and Cz for all types ofsoil
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According to AS 1726, specify the symbols and generic names used for coarse,medium and fine grain sands
Chapter 4 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
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- Refer to Problem 2.C.1. Results of the sieve analysis for Soils A, B, and C are given below. To obtain a more representative sample for further geotechnical testing, a ternary blend is created by uniformly mixing 8000 kg of each soil. Answer the following questions. a. If a sieve analysis is conducted on the mixture using the same set of sieves as shown above, compute the mass retained (as a percentage) and cumulative percent passing in each sieve. b. What would be the uniformity coefficient (Cu) and the coefficient of gradation (Cc) of the mixture?arrow_forwardOutline the plasticity chart by placing its borders for the classification of fine particle soilsarrow_forward% Finer • Particle size analyses were carried out on two soils-Soil A and Soil B-and the particle size distribution curves are shown in Figure 100 90 80 70 60 50 40 30 Clay 20 10 0 0.001 + Silt 0.01 Soil A Sand Soil B 0.1 1 Particle size (mm) - log scale Gravel 10 Soil A LL 26 (oven-dried; assume same for not dried) B Nonplastic 1. Which of the two soils, in your opinion, is a better material for the core of a rolled earth dam? PL 18arrow_forward
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- Classify the given soil to be used as highway subgrade material using the AASHTO Method by using the attached table for its classification. Sieve analysis % finer No. 10 Sieve = 47% %3D No. 40 Sieve = 28% No. 200 Sieve = 9% Plasticity for the minus NO.40 fraction LL = 0 PI = 2%arrow_forwardQ#4: Provide three applications of each in light of soil stability. Hydraulic conductivity Liquid limit Plasticity index Moisture content Permeability Subject: Geotechnical Enggarrow_forwardThe sieve analysis of ten soils and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given below. Classify the soils using the AASHTO classification system and give the group indexes. % Passing No. 10: 100 % Passing No. 40: 78 % Passing No. 200: 8 LL = - PL NP (Non-Plastic) Group classification: Blank 1 Group index: Blank 2 Blank 1 Add your answer Blank 2 Add your answerarrow_forward
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