Homework #2 Solution
1) The three basic categories of rocks are :
- Igneous Rocks formed by the cooling and solidification of magma and lava.
- Sedimentary Rocks formed by the deposition of material at Earths surface.
- Metamorphic Rocks formed by the tra
Homework Assignment #1 Solution
Problem 2:
Soil Mechanics Course Outcomes:
1. List the salient engineering properties of soils and their characteristics, and
describe the factors that control the properties of soils.
2. List the methods which engineers im
CEG 3011 - Soil Mechanics
Fall 2014
Homework 2 Solution
Total Possible Points = 35
Problem 1: Total 5pts
What are the three basic categories of rocks? Provide a brief statement for each.
Solution:
Igneous rocks
Sedimentary rocks
Metamorphic rocks
Probl
CEG 3011 - Soil Mechanics
Fall 2014
Homework 7 Solutions
Total Possible 45 points
Problem 1: 5pts
You have received the following letter for the Florida Department of Environmental Protection
(FDEP). Please proceed with their request.
Dear Consultant
The
CEG 3011 - Soil Mechanics
Spring 2014
Homework 5 - Solutions
Total Possible Points =15
Problem 1: Total 2pts
Refer to the constant- head arrangement shown in Figure 7.5. For a test, the following are given:
L = 300 mm
A = 175 cm2
h = 500 mm
Water collecte
CEG 3011 - Soil Mechanics
Fall 2014
Homework 6 - Solutiom
Total Possible Points = 30
Problem 1: Total 5pts
Refer to the figure below. For a constant-head permeability test in a sand, the following are
given:
L = 350 mm
A = 125 cm2
h = 420 mm
Water col
CEG 3011 Soil Mechanics
Exam 3
Problem 1
What stress, , applied over a large area on the ground surface is required to produce a
settlement (due to primary consolidation) of 80 mm at the time of exactly 120 days after
application. Assume that the soft cla
CEG 3011 - Soil Mechanics
Fall 2014
Homework 5 - Solution
Total Possible Points = 30
Problem 1: Total 5pts
Which of the following tests is not related to field testing compaction?
1. SPT
2. Sand cone apparatus, and balloon testing device
3. Geo-gauge
4. N
CEG 3011 - Soil Mechanics
Spring 2014
Homework 2 Solution
Total Possible Points = 65
Problem 1: Total 10pts
Following are the results of a mechanical sieve analysis:
Opening
Sieve No.
4
10
20
40
60
100
200
Pan
Cumulative mass
retained above each
sieve (g)
CEG 3011 Soil Mechanics
Fall 2014
Homework 9 - Solutions
Total Possible Points = 30
Problem 1: Total 5pts
The following Figure shows a soil profile. The uniformly distributed load on the ground
surface is .
Given: = 1500 lb/ft2, H1=5ft, H2=10ft, H3=20 ft,
CEG 3011 - Soil Mechanics
Spring 2014
Homework 10 Solutions
Total Possible Points = 35
Problem 1: Total 5pts
A direct shear test was conducted on a specimen of dry sand with a normal stress of 200 kN/m2.
Failure occurred at a shear stress of 175 kN/m2. Th
CEG 3011 - Soil Mechanics
Spring 2014
Homework 8 Solutions
Total Possible Points = 30
Problem 1: Total 5pts
The following Figure shows a soil profile. The uniformly distributed load on the ground
surface is .
1. Estimate the primary settlement of clay lay
CEG 3011 - Soil Mechanics
Spring 2014
Homework 6 - Solutions
Total Possible 38 points
Problem 1: Total = 27 pts
Refer to the figure below and calculate , , at A, B, C, and D for the following cases and plot
the variations with depth. (Note: e = void ratio
CEG 3011 - Soil Mechanics
Spring 2014
Homework 7 - Solutions
Total Possible Points =38
Problem 1: Total 3pts
If q1= 750 lb/ft, x1 = 8ft, x2 = 4 ft, and z = 5 ft, and knowing that the vertical stress increase at point A is
35 lb/ft, determine the magnitude
CEG 3011 - Soil Mechanics
Spring 2014
Homework 4 Solutions
Total Possible Points = 40
Problem 1: Total 12pts
The following information was provided from the soils laboratory for a bucket of mixed
waste foundry sand that was tested at Modified Proctor (MP)
CEG 3011 - Soil Mechanics
Fall 2014
Homework 4- Solution
Total Possible Points = 30
Problem 1: Total 5pts
For a moist soil, the following are given: V = 0.25 ft3, W = 30.75 lb, w = 9.8%, and Gs = 2.66.
Determine
a. (lb/ft3)
b. d (lb/ft3)
c. e
d. n
e. S
f.
CEG 3011 - Soil Mechanics
Fall 2014
Homework 8 - Solutions
Total Possible Points = 30
Problem 1: Total 5pts
Solutions:
A.
(1) 20 ft
(2) > 100 ft
B.
(1) Highway
(2) Off-road
(3) Overwater
(4) Portable drill rigs
C.
(1) Solid stem continuous flight auger
(2
CEG 3011 Soil Mechanics
Spring 2016
Homework assignment 5
Concept understanding
Pb1
Which of the following tests is not related to field testing compaction?
1. SPT
2. Sand cone apparatus, and balloon testing device
3. Geo-gauge
4. Nuclear density meter
Ch
CEG 3011 - Soil Mechanics
Fall 2014
Homework 3 - Solution
Total Possible Points = 30
Problem 1
For a soil, the following grain-size analysis is given:
U.S. sieve no. % Passing
4
90
200
8
LL
39
PI
31
Cu
3.9
Cc
2.1
Classify the soil by using Unified soil cl
CEG 3011 Soil Mechanics
Fall 2014
Homework 10 Solutions
Total Possible Points = 30
Problem 1: Total 5pts
Following are the results of four drained direct shear tests on a normally consolidated
clay:
Diameter of specimen = 50 mm
Height of specimen = 25 mm
CEG 3011 - Soil Mechanics
Spring 2014
Homework 3 Solutions
Total Possible Points = 38
Problem 1
Classify this soil from the grain-size distribution shown below using the AASHTO system, if
the material passing the #40 sieve has a LL = 34% and has a PI = Ip
Homework assignment 2
Spring 2016
Concept understanding
Pb1
What are the three basic categories of rocks? Provide a brief statement for each.
Pb2
(a) What are the two types of surface forces in clayey soils?
(b) What is adsorbed water?
(c) Can you remove