BASE UNITS
Multiplication
Factor
Prefix
SI Symbol
10000000 giga
G
1000000 mega
M
1000 kilo
K
0.001 milli
m
0.000001 micro
0.000000001 nano
n
Quantity
Unit
Symbol
length
meter
m
mass
kilogram
Kg
force
Newton
N
time
second
s
DERIVED SI UNITS
Quantity
Derive
Quiz #8
(Due by 2400 hours Friday, 30 July 2010)
This is a take-home quiz. Accepting a take-home quiz means that you pledge to yourself to
be honest and do the quiz alone. The grade is highly dependent on the quality of your
drawing, and the clarity of yo
Quiz #7
This is a take-home quiz. Accepting a take-home quiz means that you pledge to yourself to
be honest and do the quiz alone. The grade is highly dependent on the quality of your
drawing, and the clarity of your calculations (in Math Type found in WO
Quiz #6
This is a take-home quiz. Accepting a take-home quiz means that you pledge to yourself to
be honest and do the quiz alone. The grade is highly dependent on the quality of your
drawings, and the clarity of your calculations (in Math Type found in W
Quiz-5
Find (1) the total pore pressure at points A and B; (2) the total head at points A and B; and
(3) the total seepage flow Q for the 1,500 ft wide dam in gallons per year, if the permeability
of the soil beneath the dam is k 10-2 cm/s.
FLORIDA INTERNATIONAL UNIVERSITY
Department of Civil and Environmental Engineering
CEG-4011 Geotechnical Engineering I
Summer Term C - 2010
QUIZ No. 4
Name _SOLUTION_29 June 2010
(2 points) What are the four forms of water associated with clays?
a) Free o
FLORIDA INTERNATIONAL UNIVERSITY
Department of Civil and Environmental Engineering
CEG-4011 Geotechnical Engineering I
Summer Term C - 2010
QUIZ No. 3
Name _SOLUTIONS_21 February 2010
European engineers plot their grain-size graphs from right-to-left, ver
Solution to Quiz No. 2
1. (2 points). Briefly describe the difference between the standard penetration test
(SPT) and the Dutch cone penetration test (CPT) as a means of site investigation.
1
2
3
4
Type of soil
Samples
Drilling
Results
5
6
Type of test
Pr
Florida International University
Department of Civil and Environmental Engineering
CEG-4011 Geotechnical Engineering I
Quiz No. 1
Name _SOLUTIONS_ 08 June 2010
(1 point). What is the etymological origin of our word canal?
The word comes from the Farsi (Pe
16 - Braced Cuts
*01:
*02:
*03:
*04:
*05:
Determine the type of lateral pressure diagram.
Factor of safety against heaving failure of an excavation.
Forces and moments in the struts of a shored trench.
A 5 m deep excavation with two struts for support.
Fo
15 - Lateral Stresses
01: A simple wall subject to an active earth pressure.
02: Compare the Rankine and Coulomb coefficients.
03: Passive pressures using the Rankine theory.
04: At rest pressures upon an unyielding wall.
05: Cohesive effects upon a Ranki
13 - Slope Stability
*01: Find the FS of a straight wedged element of slope.
*02: Swedish slip circle used to find the FS of a slope.
*03: Method of slices to find the FS of a slope.
*04: Method of slices to find the FS of a slope.
*05: Field evaluation o
12 - Shear Strength of Soils
Problem #01: Find the maximum shear on the failure plane.
Problem #02: Why the max shear is not the shear failure.
Problem #03: Find the maximum principal stress.
Problem #04: Effective maximum principal stress.
Problem #05: T
11 -Plastic Settlement (Consolidation)
*01: Pore pressure in a compressible stratum.
*02: Total settlement of a single clay layer.
*03: Using Boussinesq to find the stress in a clay.
*04: Surface loads with different units.
*05: Find the pre-consolidation
10 - Elastic Settlement
*01: Elastic settlement of a truck tire.
*02: Schmertmanns methods for a spread footing.
*03: Schmertmanns methods for a deep footing.
*04: The 2:1 method.
*05: The Boussinesq versus Westergaard methods.
*06: Differential settlemen
*Newmark01: Stress beneath a tank at different depths.
(Revision: Sept.-08)
A construction site has a surface layer of Aeolic sand 2 m thick, underlain by a 10 m
thick clay stratum. The project involves placing a wastewater treatment tank, 10 m x 10
m in
*Stress01: Stress increase at a point from several surface point loads.
(Revision: Aug-08)
Point loads of 2000, 4000, and 6000 lbs act at points A, B and C respectively, as shown
below. Determine the increase in vertical stress at a depth of 10 feet below
*Mohr-01: Find the angle of internal friction
of a soil.
(Revision: Jan-09)
The horizontal stress on a soil particle at a depth of 130 ft is of its vertical stress.
If the average unit weight of the intervening soil mass above is 116.4 pcf, and the
shear
Solved Problems in:
Dams and Levees
01: Uplift pressures upon a concrete levee.
02: Uplift pressures upon a concrete dam.
185
*Dams-01: Find the uplift pressure under a small concrete levee.
(Revision: Sept.-08)
Calculate the uplift force at the base of t
Solved Problems in:
Effective Stresses
*01: The concept of effective stress.
*02: The concept of effective stress with multiple strata.
*03: Effective and porewater pressure profiles with depth.
*04: The effects of hydrostatic uplift upon a thin stratum.
Solved Problems in:
Seepage and Flow-nets
*01: Correct flawed flow-nets.
*02: Flow-net beneath a dam with a partial cutoff wall.
*03: Velocity of the flow at any point under a dam.
*04: Flow-net through an earth levee.
*05: Finding the total, static and d
04- Soil Improvement
*01: Can a contractor attain 105% of Standard Proctor?
*02: Find the optimum moisture content (OMC).
*03: Find the maximum dry unit weight in SI units.
*04: What is the saturation S at the OMC?
*05: Number of truck loads required.
*06
03- Classification of Soils
*01. Determine the percentage of each of the four grain sizes.
*02. Coefficients of uniformity and curvature of granular soils.
*03. Classify two soils using the USCS.
*04. Manufacturing a new soil from two unacceptable soils.
02- Phases of Soils Relationships
*01. Convert from metric units to SI and US units.
*02. Compaction checked via the voids ratio.
*03. Find the moisture w when the soil is fully saturated.
*04. Identify the wrong moisture data.
*05. Dry unit weight and de
01- Subsurface Exploration
*01.
*02.
*03.
*04.
*05.
*06.
*07.
*08.
*09.
*10.
*11.
*12.
*13.
*14.
Find the required number of borings and their depth for a site.
Propose the number of samples from a geotechnical profile.
Which sampling method disturbs the
Homework No. 6
(Due by 2400 hours Saturday, 31 July)
(10 points).
(1) Redo the problem shown below in WORD, Math Type and AutoCAD;
(2) Redo the calculations in US units (instead of SI units), in psi.
Submit via e-mail with the two files: WORD and AutoCAD.
FLORIDA INTERNATIONAL UNIVERSITY
Department of Civil and Environmental Engineering
CEG 4011 Geotechnical Engineering I - Summer Term C 2010
Homework No. 5
(Due by 2400 hours Tuesday, 27 July)
(10 points). Redo the shear strength example problem shown on s
FLORIDA INTERNATIONAL UNIVERSITY
Department of Civil and Environmental Engineering
CEG 4011 Geotechnical Engineering I - Summer Term C 2010
Homework No. 4
(Due by 2400 hours Sunday, 11 July)
(10 points). Redo the Effective Stress-02 and 03, with the new s
FLORIDA INTERNATIONAL UNIVERSITY
Department of Civil and Environmental Engineering
CEG 4011 Geotechnical Engineering I - Summer Term C 2010
Homework No. 3
(Due on Thursday, 1 July 2010)
(10 points).
(1) Take the soil data given in the grain-size graph of