4.16 Plot the particle size distribution curve for each of the three soils the data for which are given below. All three curves should be on the same semi logarithmic diagram. Sieve Number 3/4 in ½ in #4 # 10 # 20 # 40 # 60 # 100 # 200 Particle Diameter from Hydrometer Analysis (mm) Lagoon Clay Beufort, SC 0.045 0.010 0.005 0.001 Data from Sowers (1979). 100 100 100 100 100 100 100 95 80 61 42 37 27 % Passing by Weight Beach Sand Daytona Beach, FL 100 100 100 100 100 98 90 10 2 Weathered Tuff Central America 100 98 95 93 88 82 75 72 68 66 33 21 10 4.17 Determine Cu and Cc for each of the three soils in Problem 4.17. Which of these soils is most well-grazied? Why?

4.16 Plot the particle size distribution curve for each of the three soils the data for which are given below. All three curves should be on the same semi logarithmic diagram. Sieve Number 3/4 in ½ in #4 # 10 # 20 # 40 # 60 # 100 # 200 Particle Diameter from Hydrometer Analysis (mm) Lagoon Clay Beufort, SC 0.045 0.010 0.005 0.001 Data from Sowers (1979). 100 100 100 100 100 100 100 95 80 61 42 37 27 % Passing by Weight Beach Sand Daytona Beach, FL 100 100 100 100 100 98 90 10 2 Weathered Tuff Central America 100 98 95 93 88 82 75 72 68 66 33 21 10 4.17 Determine Cu and Cc for each of the three soils in Problem 4.17. Which of these soils is most well-grazied? Why?

Structural Analysis

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ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Soil engineering for highway design

Soil engineering is a part of geotechnical engineering that deals with the characteristics of soil. It also helps to understand the behavior of the soil in different conditions. The basic concepts of soil are studied to check the strength, compressibility, and porosity of the soil. This makes soil engineering an important topic for civil engineering.

Question

4.16 Plot the particle size distribution curve for each of the three soils the data for which are
given below. All three curves should be on the same semi logarithmic diagram.
Sieve Number
3/4 in
½ in
#4
# 10
# 20
# 40
# 60
# 100
# 200
Particle Diameter
from Hydrometer
Analysis (mm)
Lagoon Clay
Beufort, SC
0.045
0.010
0.005
0.001
Data from Sowers (1979).
100
100
100
100
100
100
100
95
80
61
42
37
27
% Passing by Weight
Beach Sand
Daytona Beach, FL
100
100
100
100
100
98
90
10
2
Weathered Tuff
Central America
100
98
95
93
88
82
75
72
68
66
33
21
10
4.17 Determine Cu and Cc for each of the three soils in Problem 4.17. Which of these soils is
most well-grazied? Why?

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Step 1: Semi logarithmic diagram

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Step 2: Calculating Cu and Cc for lagoon soil and beach sand

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Step 3: Calculating Cu and Cc for weathered tuff

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4. Determine the USCS designation and soil description of a soil sample given the following sieve analysis test results: D10 = 0.2 mm = D30 0.73 mm D60 3.35 mm % passing #4 = 77.5 % passing #200 = 9.5 The fines are silty.