CE 3321 HOMEWORK ASSIGNMENT NO. 2
1. There are no hard-and-fast rules about the number of boreholes to be drilled at a given
construction site or how deep the boreholes should be. Nonetheless, identify 3 factors that
would influence the number of borehole
Homework No. 8 Solution
CE 3321 Chapter 8: Groundwater Applications
(20 points)
1. (5 points) (a) Compute the flow rate through this soil, expressed in liters per second, at Point
A. (b) Compute the pore water pressure at Point A, which is at elevation 12
CE 3321 HOMEWORK ASSIGNMENT NO. 1
1. A flyer called What is Geotechnical Engineering.pdf has been uploaded to the
Reference Materials folder in the class Blackboard website. Read the flyer carefully and fill
out the following blanks:
(a) Geotechnical Engi
SOLUTION
CE 3321 HOMEWORK ASSIGNMENT NO. 3
1. A geotechnical site exploration program would typically include the following preliminary
tasks as a first step towards developing a suitable plan for drilling and sampling. Briefly
describe (in 1 or 2 sentenc
SOLUTION
CE 3321 HOMEWORK ASSIGNMENT NO. 4
1.
Problem 4.1 [6 points]
A cube of moist soil weighs 330 lb and has a volume of 3.00 ft3. Its moisture content is 27.0%
and the specific gravity of solids is 2.72. Compute the void ratio, porosity, degree of sat
SOLUTION
CE 3321 HOMEWORK ASSIGNMENT NO. 7
1.
A constant-head hydraulic conductivity test has been conducted on a 110-mm-diameter, 270-mmtall fine sand specimen. The upper and lower reservoir elevations were 2010 mm and 1671 mm
above the lab floor. The gr
CE 3321 HOMEWORK ASSIGNMENT NO. 3
SOLUTION
1.
A sample of moist soil weighs 375 lb and has a volume of 3.375 ft3. Its moisture content is
26% and the specific gravity of solids is 2.72. Compute the void ratio (e), porosity (n),
degree of saturation (S), a
CE 3321 HOMEWORK ASSIGNMENT NO. 2
1. There are no hard-and-fast rules about the number of boreholes to be drilled at a given
construction site or how deep the boreholes should be. Nonetheless, identify 3 factors that
would influence the number of borehole
SOLUTION
HOMEWORK ASSIGNMENT NO. 6
1.
This question is based on information you can find on Soil Compaction Equipment catalogs
published by a leading construction equipment manufacturer, Caterpillar.
a. See page 9 of Catepillar Product Catalog. They speci
CE 3321 HOMEWORK ASSIGNMENT NO. 4
(Due 09:00 am Wednesday February 22, 2017)
1. The following data were obtained from a liquid limit test on a sandy clay. [5 points]
Trial No.
No. of blows
w (%)
1
16
23.3
2
21
22.5
3
29
21.8
4
34
21.5
(a) Using the templa
SOLUTION-CE 3321 HOMEWORK ASSIGNMENT NO. 5
1. Texas Tech University is constructing a new road near the Department of Civil and
Environmental Engineering building. A project engineer is planning to get the soils from an
offsite borrow pit in order to use
CE 3321 HOMEWORK ASSIGNMENT NO. 4 (SOLUTIONS)
1. What is the water content of a fully saturated soil with a dry unit weight d of 16.9 kN/m3?
Assume Gs = 2.72. [2 points]
Solution)
Fully Saturated Soil, S = 1
=
2.72
16.9 =
9.81 " = 0.58
1+
1+
Use the equ
CE 3321: Quiz No.7
Chapters 12, 13, and 17
Name:
Date:
1. Compute a shear strength of a cohesionless (c = 0) sand with friction angle of 30 degrees
under normal stress of 100 kPa using Mohr-Coulomb failure criterion (f = c + tan).
Shear strength f = _ kPa
Name: _
Student No: _
CE 3321: INTRODUCTION TO GEOTECHNICAL ENGINEERING
Final Exam Practice Test: Part I
1. Which one/ones of the following rocks belong to Metamorphic Category?
(I) Marble, (II) Shale, (III) Limestone, (IV) Granite, (V) Gneiss
A. II and I
Name: _
Student No: _
CE 3321: INTRODUCTION TO GEOTECHNICAL ENGINEERING
Final Exam Practice Test: Part I
1. Which one/ones of the following rocks belong to Metamorphic Category?
(I) Marble, (II) Shale, (III) Limestone, (IV) Granite, (V) Gneiss
A. II and I
Chapter 2:
Engineering Geology
Hoyoung Seo, Ph.D., P.E.
Assistant Professor
CE3321 Fall 2016
How to cite this lecture notes
Seo, H. (2016). Introduction to Geotechnical Engineering: Ch. 2 Engigneering Geology [Lecture notes]. Retrieved from
https:/ttu.bla
Chapter 12:
Soil Strength
Hoyoung Seo, Ph.D., P.E.
Assistant Professor
CE3321 Fall 2016
How to cite this lecture notes
Seo, H. (2016). Introduction to Geotechnical Engineering: Ch. 12 Soil Strength [Lecture notes]. Retrieved from https:/ttu.blackboard.com
Chapter 9:
Stress
Hoyoung Seo, Ph.D., P.E.
Assistant Professor
CE3321 Fall 2016
How to cite this lecture notes
Seo, H. (2016). Introduction to Geotechnical Engineering: Ch. 9 Stress [Lecture notes]. Retrieved from https:/ttu.blackboard.com/webapps/portal/
Chapter 2:
Engineering Geology
Hoyoung Seo, Ph.D., P.E.
Assistant Professor
CE3321 Fall 2016
How to cite this lecture notes
Seo, H. (2016). Introduction to Geotechnical Engineering: Ch. 2 Engigneering Geology [Lecture notes]. Retrieved from
https:/ttu.bla
SOLUTION TO CE 3321 HOMEWORK ASSIGNMENT NO. 10
1.
The normal stress on a certain plane at a given point in a soil is 120 kPa. The
cohesion and friction angle of the soil are 10 kPa and 31, respectively. A
foundation to be built nearby will induce a shear
SOLUTION TO
HOMEWORK ASSIGNMENT NO. 6
1.
Read Chapter 7 of the textbook and fill out the following blanks:
(Groundwater table), also called the (phreatic surface), can be located by
installing observation wells and allowing the groundwater to seep into th
SOLUTION
CE 3321 HOMEWORK ASSIGNMENT NO. 5
1.
Read Chapter 6 of the textbook and fill out the following blanks:
The most fundamental objective of (earthwork) construction is to change the ground surface
from some initial configuration, typically described
CE 3321 HOMEWORK ASSIGNMENT NO. 6
(Deadline 09:00am, Friday, March 10, 2017)
1.
A constant-head hydraulic conductivity test has been conducted on a 110-mmdiameter, 270-mm-tall fine sand specimen. The upper and lower reservoir elevations
were 2010 mm and 1
SOLUTION TO CE 3321 HOMEWORK ASSIGNMENT NO. 12
1. The figure below shows a cut that will be made as a part of a new roadway
construction project. The slope of the existing ground is 3H (Horizontal):1V
(Vertical). The height of the cut is 24.0ft and the sl
CE 3321 HOMEWORK ASSIGNMENT NO. 13
1. A basement is to be built using 12-ft-tall masonry walls. These walls will be
backfilled with a silty sand that has c =0, =31 and = 118 lb/ft3. Assuming that
at-rest conditions exist, determine the distribution of lat
1.
Name:
Student No:
CE 3321: INTRODUCTION TO GEOTECHNICAL ENGINEERING
Test No.3: Fall 1999
(6 points) The major and minor principal stresses in a soil are as follows: 61 = 90 psi,
63 = 30 psi. What is the maximum shear stress 17m in the soil?
SOLUTION
CE 3321 HOMEWORK ASSIGNMENT NO. 6
1.
Data provided is plotted on the Water Content (%) versus Number of drops graph as shown
below. Then the best-fit straight line is drawn and from the line the LL of the soil is
determined.
Liquid Limit, LL = 46
SOLUTION
CE 3321 BONUS HOMEWORK ASSIGNMENT - I
A sample of moist soil has following properties:
a. Water (moisture) Content = 24%
b. Degree of Saturation = 76%
c. Specific Gravity of Solids, Gs = 2.72
I.
Use the formulas given on Slide No. 37 of Ch 4. Soi
SOLUTION
CE 3321 HOMEWORK ASSIGNMENT NO. 2
1)
[4 points]
Using the formula
tan a = tan sin
where: a = apparent dip angle
= dip angle
= angle between strike and cross-sectional plane
tan a = tan 38o sin 43o
a = 28
Beddingplaneswithapparentdip=28
34
2)
[
SOLUTION TO CE 3321 HOMEWORK ASSIGNMENT NO. 11
1. A series of consolidated-undrained (CU) triaxial compression tests with pore water
pressure measurements was performed on three identical 2.50-inch-diameter
cylindrical specimens of clay. All of the specim
CE 3321 HOMEWORK ASSIGNMENT NO. 14
* Use charts for bearing capacity factors from FE manual shown on Page 2 of this
homework assignment for your calculations.
1. The bearing wall of a structure is to be supported on a 3-ft wide strip footing founded
at a